Class 514 is an integral part of Class 424. It incorporates all the definitions and rules as to subject matter of Class 424.

LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
A. GENERAL STATEMENT OF CLASS SUBJECT MATTER
(1) Official subclasses 1-789 do not provide for cross-reference patents which are originally classified in Class 260 (Compound area) or in the Class 530-570 series or in Class 585. Cross-reference patents that are originally classified in the Class 520 series are allowed.
(2) The cross-reference rule elaborated above means that a specific compound having a disclosed or even specifically claimed utility (i.e., compound X useful as an anti-cancer drug) will be classifiable only in Class 260 or in the Class 530-570 series or in class 585.
B. OFFICIAL CROSS-REFERENCE ART COLLECTIONS:
(1) Peptide and protein art collections (subclasses 800-809).
(2) Specifically disclosed disease condition and pharmaceutical effect (subclasses 810-935).
The official cross-reference art collections subclasses 800-935 take patents dating from Jan.1, 1965. These collections provide for data from all classes including Classes 260, 530-570, and Class 585.
C. OFFICIAL CROSS-REFERENCE ART COLLECTIONS:
Subclasses 936-975 provide for specifically disclosed carrier specified nonbioactive ingredient (subclasses 936-975).
This art collection provides (1) data from Class 260 (Compounds ) and Classes 530-570 series and Class 585 dating from Jan. 1, 1965, and (2) data from all other classes regardless of date.
Class 514 and Class 424 differ in scope as to cross-referencing procedure. Those subclasses identified as Class 424 will accept cross-references from all classes including 424, 260, Classes 530-570 series and Class 585 as has been done in the past. An exception within Class 424 are subclasses 1.11+ wherein the 514 rule is respected and therefore cross-referencing is not accepted.
SCHEDULE OUTLINE OF CLASS 514
The schedule is divided into a number of parts, each of which is distinct and provides for different types of subject matter. The following is a breakdown of the major areas and indicates the type of subject matter provided therein.
(A) Subclasses 1-768 provide for the subject matter proper under Class 424 containing a designated organic active ingredient (DOAI), methods of making such compositions and methods of using such compositions. Also included herein are method of using a specified DOAI.
(B) Subclasses 769-771 provide for subject matter relating to a designated inorganic nonactive ingredient (See Glossary below) other than water or designated elemental nonactive material (See Glossary). These subclasses provide for compositions which may have an organic active material and which active material does not qualify as a DOAI as well as to methods of preparing or using such compositions. These subclasses also provide for compositions containing a designated inorganic nonactive material other than water or designated elemental material and which composition qualifies as subject matter proper for Class 424 and is not provided higher in the classification schedule as well as to methods of preparing or using such compositions.
(C) Subclasses 772-788 provide for subject matter relating to a designated organic nonactive ingredient (See GLOSSARY) other than a hydrocarbon. These subclasses provide for compositions which may have an organic active material and which active material does not qualify as a DOAI as well as to methods of preparing or using such compositions.
(D) Subclass 789 is the miscellaneous subclass for subject matter proper in Class 424 or 514. This subclass provides for compositions, methods of preparing or using same.
(E) Subclasses 800-809 are art collections pertaining to protein and peptide and relate to subject matter only in Class 514.
(F) Subclasses 810-935 are art collections pertaining to specifically disclosed disease condition and pharmaceutical effect and relate to subject matter only in Class 514.
(G) Subclasses 936-975 are art collections pertaining to specifically disclosed carrier system; physical form or specified nonbioactive ingredient and relate to subject matter only in Class 514.
DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI)
DOAI is when (a) the active ingredient is identified by at least one chemical atom, e.g., organic phosphorus compound, etc. or (b) the active ingredient is identified as a generic type of chemical compound, e.g., alcohol, ether, etc.
The term active denotes a physiological, pharmacological or biological effect.
For purposes of this class organic active ingredient although inherently reciting the presence of a carbon atom is
considered to be too broad and therefore will not be considered as DOAI's is as follows: chalcogen, carboxylic acid, phosphorus containing, organic alkali or earth metal compound, hydrocarbon, halogenated hydrocarbon, etc.
The following list below is not exhaustive and merely emumerates certain materials that will not be considered as DOAI's, e.g., organic compound, solvent, biocide, pharmaceutically active, medicine, preservative, diabetes active, pesticidal, active against rabies, antihistamine, anti-tussive, anti-caries, crystalline, antioxidant, etc.
It is important to remember that function of a material or even amount, e.g., pharmaceutical, etc., even if specific, e.g., diabetes active, etc., or 2% of a diabetes active ingredient, etc., does not meet any of the necessary criteria elaborated in 1 and 2 above. Function or amount therefore does not qualify as rendering an ingredient as "Designated".
RULES CONCERNING THE USE OF DOAI IN THE SCHEDULE
For purposes of Class 514, certain rules as to patent placement have been adopted. These rules pertain only to the subject matter in Class 514 and are not to be extrapolated to areas in Class 424.
The rules adopted pertaining to the use of the term "DOAI" are as follows:
(A) In those subclasses which recite a designated organic active ingredient (DOAI) in the title, the indented subclasses merely pertain to a further elaboration of the DOAI and do not relate to any other ingredient. An example of this is (subclass 497 in Class 514) which recites nitrogen containing and is indented under (subclass 496) which recites mercury and which in turn is indented under (subclass 492) heavy metal containing DOAI. The meaning of (subclass 497) is that an active ingredient contains both nitrogen and mercury atoms as part of a single molecule.
(B) In those subclasses which recite "with" as in (subclass 168) under a specified DOAI, such use is consistent with the term as used in other classes in that, at least two separate materials must be present, one of which is the DOAI and the other "with" ingredient. The "with" ingredient need not have an active function for Class 514 unless the subclass specifically requires an "active with ingredient" as in subclass 154.
EXAMPLES OF PATENT PLACEMENT WITHIN THE CLASS
Patentee Claims
(A) A biocide and starch as a carrier. The original classification is with the starch in subclass 778, since a chemical atom of the biocide is not recited.
(B) 2% of a biocide and starch as a carrier. Same classification as in (A) above, since 2% is not considered sufficient to be DOAI.
(C) An organic phosphorus containing biocide and starch as carrier. Original classification is on the basis of the biocide since an atom is recited. Entirely proper to look at disclosure to see the type of phosphorus compound encompassed by the term "organic phosphorus".
(D) A synergistic mixture of two biocides at least one of which is formaldehyde classifiable in subclasses 694+. The disclosure recites that the other biocide can be a organic phosphorus compound classifiable in subclasses 75+. Since the claim has only one DOAI recited (i.e., formaldehyde) original classification is in the formaldehyde species.
(E) A synergistic mixture of two biocides one of which is formaldehyde and the other is malathion. Formaldehyde is classified in subclass 694 and malathion is classified in subclass 122. The original is classified with malathion in subclass 122 as per normal classification rules.
RULES CONCERNING PLACEMENT OF SALTS WITHIN CLASS 514 AND SEARCH THEREFOR
Classification Practice
(A) Inorganic salts of organic materials are considered as organic and classified with the organic materials only, even when the organic material is not a DOAI by definition (see Glossary). No weight in the classification system is given to the inorganic material. However, when the inorganic segment of the salt is specifically claimed or disclosed as the only active segment of the salt molecule original classification is proper on the basis of the inorganic segment and cross-referenced to the organic material.
Example 1. R--R. SO[subscrpt]4[end subscrpt]
classified on the basis of
R--R
segment only
Example 2 Organic. SO[subscrpt]4 [end subscrpt]
or
Organic pesticide. SO[subscrpt]4[end subscrpt] classified on the basis of the disclosed organic or organic pesticide material only.
Example 3. Organic. SO[subscrpt]4 [end subscrpt]
or
Amine. SO[subscrpt]4[end subscrpt]
Wherein activity is recited only in the SO[subscrpt]4[end subscrpt] segment, original classification is with SO[subscrpt]4[end subscrpt] segment, cross-reference is highly desirable with the disclosed organic or amine material.
(B) When a nonsalt DOAI material (see section 2, Glossary) as well as a salt thereof are claimed a prima facie nonrebuttal presumption is established that only the nonsalt active material is effective, even if the salt is specifically claimed and even if different 424 utility is noted for the specific salt. The claims are classified as original with the nonsalt DOAI material and a cross-reference to the salt area, even if higher in the classification schedule is unnecessary.
(C) When an organic salt of a DOAI is solely specifically claimed (i.e., nonsalt species of material is not claimed) the following classification rules will apply:
(1) Both segments of the solely claimed salt, i.e., anion and cation, are designated
(a) both segments are claimed or disclosed as active for the utility intended, or where no evidence is shown that a particular segment is active or inactive (both through claims or disclosure), the entire molecule will be considered a DOAI and classified on the basis of the first appearing segment in the schedule hierarchy, an example of this is the treatment of amine-critic acid: original classification with citric acid is proper since both segments of the molecule are active and since amine is classified lower in the 514 schedule hierarchy then citric acid or
(b) only one particular segment is claimed or disclosed as active, the original classification is to the designated active segment and cross-referenced to the nonactive segment area if said nonactive segment is higher in the classification schedule.
(2) Only one segment of the solely claimed salt, i.e., anion or cation, is designated, the original classification is with the active segment, even if the active segment is nondesignated, e.g., "an amine salt of an organic compound" wherein the pesticide or organic compound is specifically claimed or disclosed to be active for the utility intended. Classification is on the basis of the disclosed pesticide or the organic compound and cross-referenced to the amine area if the amine is higher in the schedule hierarchy than the disclosed species of the pesticide or organic compound. However, when the nondesignated segment is claimed as "a pharmaceutically acceptable acid (or base or equivalent thereof), e.g., "an amine salt of a therapeutically acceptable or compatible acid", no weight is given to the
"acceptable or compatible acid" and classification is based only on the designated segment, i.e., the amine.
Examination Practice
Due to the nature of the system of classification elaborated above a search to be complete must at times entail searching in a multiplicity of subclasses.
(A) Claims drawn to solely a salt. Claims are classified and searched as in Classification Practice, C, above.
(B) Claims drawn to a nonsalt DOAI and also to a salt thereof, either in a dependant claim or in a Markush group. Classified only with the nonsalt species but searched in all salt species which are classified higher in the classification schedule than the nonsalt species.
The rules for determining Class placement of the Original Reference (OR) for claimed chemical compositions are set forth in the Class Definition of Class 252 in the section LINES WITH OTHER CLASSES AND WITHIN THIS CLASS, subsection COMPOSITION CLASS SUPERIORITY, which includes a hierarchical ORDER OF SUPERIORITY FOR COMPOSITION CLASSES.
CLASS 514 TERMS
The following frequently used terms in Class 514 are referenced in References to The Current Class, below. These terms have also been entered into the Index of the U.S. Patent Classification.
A
Acronycines; Allantion; Amantadine; Amphetamine; Ampicillin; Amprotropine; Aspirin; Atropine
B
Barbituric acid; Benzocaine; Benzomorphans; Biotin
C
Capsaicin; Cephalocporins; Chlorpheniramine; Cholecalciferol; Chrysanthemic acid; Cobalamin; Codeine; Colchicine; Cortisone; Cupreine; Cycloheximide; Cyproheptadine; Cysteine ester
D
DDT; DDVP; Dextromethorphan; Dyphylline
E
Ephedrine; Estradiol;
F
Fluspirilene
G
Glaucine; Glucamine; Griseofulvin
H
Hexachlorophene; Hydrocortisone
I
Isoniazid
M
Malathion; Melatonin; Meperidine; Methadone; Methapyrilene; Methomyl; Morphinans; Morphine;
N
Nandrolone; Niacinamide; Nortestosterone; Novocaine
O
Oxolinic acid
P
Parathion; Pencillin G; Perimidines; Phenylephrine; Phenyltoloxamine; Pilocarpine; Pimozide; Piromidic acid; Perdnisolone; Procaine; Progesterone; Psoralen; Pteridine; Purines
Q
Quinicine; Quinidine; Quinine; Quinoxaline
R
Riboflavins
S
Salinomycin; Scopolamine
T
Tartaric acid; Tetracycline; Theophilline; Thiamines; Tocopherois; Tryptophan; Tyrosine; Tripelennamine
U
Uracil
V
Vinblastine; Vincamine; Viquidil

SEE OR SEARCH THIS CLASS, SUBCLASS:
52 Cobalamin
122 Malathion
132 Parathion
136 DDVP
152 Tetracycline
167 Cholecalciferol
165 Aspirin
178 Nortestosterone
179 Hydrocortisone
179 Cortisone
178 Nandrolone
179 Perdnisolone
177 Progesterone
182 Estradiol
198 Ampicillin
199 Pencillin G
200 Cephalocporins
249 Pteridine
249 Quinoxaline
251 Riboflavins
261 Purines
263 Theophilline
263 Dyphylline
269 Perimidines
270 Barbituric acid
274 Uracil
276 Thiamines
278 Fluspirilene
282 Codeine
283 Vincamine
283 Vinblastine
285 Acronycines
282 Morphine
284 Glaucine
289 Dextromethorphan
289 Morphinans
291 Oxolinic acid
291 Scopolamine
295 Benzomorphans
303 Piromidic acid
305 Cupreine
305 Quinidine
305 Quinine
314 Quinicine
314 Viquidil
323 Pimozide
325 Cyproheptadine
328 Cycloheximide
330 Meperidine
336 Methapyrilene
352 Tripelennamine
354 Isoniazid
355 Niacinamide
357 Chlorpheniramine
387 Biotin
390 Allantion
397 Pilocarpine
415 Melatonin
419 Tryptophan
455 Psoralen
458 Tocopherois
460 Salinomycin
462 Griseofulvin
477 Methomyl
534 Amprotropine
534 Atropine
535 Benzocaine
535 Novocaine
535 Procaine
550 Cysteine ester
567 Tyrosine
572 Chrysanthemic acid
574 Tartaric acid
627 Capsaicin
629 Colchicine
648 Methadone
651 Phenyltoloxamine
653 Ephedrine
653 Phenylephrine
654 Amphetamine
656 Amantadine
669 Glucamine
735 Hexachlorophene
748 DDT

GLOSSARY:
The following terms have been used in a number of subclass titles throughout Class 514. For convenience, these often used terms have been arranged into a Glossary. When any of these terms is used in particular subclass titles in Class 514, their meaning is to be consistent with the meaning in this Glossary.
ACYCLIC
Denotes a compound devoid of any ring-containing moiety. Thus an acyclic chain may contain any atom as long as it is not a member of a ring.
ALCOHOL
Denotes an organic compound having the general structure C-OH wherein the carbon atom bound to the oxygen atom of the hydroxyl group cannot be doubled bonded to oxygen, sulfur, selenium, or tellurium or triple bonded to nitrogen. The terms as used herein includes phenols.
ALDEHYDE
Denotes an organic compound having the general structure -C-{C(=O)}[subscrpt]n [end subscrpt]-H or H-{C(=O)}[subscrpt]n-[end subscrpt]H (n is 1 or more and wherein the carbon atom bonded to the-{C(=O)}-[subscrpt]n[end subscrpt] group is not double bonded to oxygen, sulfur, selenium, or tellurium, or triple bonded to nitrogen.
ALICYCLIC RING OR RING SYSTEM
This term denotes a carbocyclic ring which is not a benzene ring or a polycyclo carbocyclic ring system which does not have a benzene ring as one of the cyclos.
AMINE-
Denotes an organic compound having a nitrogen atom single or double bonded to a carbon atom and wherein the carbon atom bonded to the nitrogen atom is devoid of a double bond to oxygen, sulfur, selenium, or tellurium or triple bonded to nitrogen. In addition, those compounds wherein the same nitrogen atom is bonded to a -C(=X)- group (X is O, S, Se, or Te) and to a carbon atom which is not double bonded to oxygen, sulfur, selenium, or tellurium, are not considered as being amines, e.g.,
-C-NH-C(X=)-
Although amides may be considered chemically as amines, it has been found expedient for this class to exclude compounds containing only amide nitrogen herefrom. Therefore, as used
throughout this area, the term amide is not to be confused as being an amine. A compound, however, which contains a nitrogen atom bonded to a non -C(=X)- carbon atom and which contains either a nitrogen atom bonded to a -C(=X)- group or an amide group, is considered as being an amine.
AMINO NITROGEN
Denotes any nitrogen in an organic compound other than a nitrogen in an inorganic ion of an addition salt, a nitro (-NO[subscrpt]2[end subscrpt]) or nitroso (-NO). Component parts of an "adduct" will be considered to be attached to each other ionically except if it is clear that the mode of attachment is nonionic.
ARYL RING OR RING SYSTEM
This term denotes a benzene ring or a polycyclo carbocyclic ring system having a benzene ring as one of the cyclos.
ATTACHED DIRECTLY OR BONDED DIRECTLY
These terms are used to show that specified moieties are connected by bonds only.
ATTACHED INDIRECTLY
This term denotes that at least one atom, as well as bond, connects specified moieties.
BENZENE RING
This term includes in all cases except where there are explicit limitations to the contrary, substituted benzene rings, including substitution in the form of an additional fused or bridged ring or ring system.
BICYCLO RING SYSTEM
This term denotes a polycyclo ring system which contains exactly two rings.
CARBOCYCLIC
This term denotes a ring or ring system where all ring members are carbons.
CHAIN
This term denotes a plurality of atoms which connect specified groups or atoms. The atoms of the chain must be nonionically attached to each other and to the specified groups or atoms. If the chain may not include any ring members it will be designated as acyclic. When the chain may include ring members the title will state that the chain may include a ring. The chain ends where it attaches to the specified groups or atoms and does not include any part of
them. The chain may have substituents but the substituents are not part of the chain.
DESIGNATED ELEMENTAL NONACTIVE INGREDIENT
Denotes an elemental material either metallic or nonmetallic and which is identified by its chemical nature, e.g., iron, silver, etc., or is identified in a generic manner, e.g., alkali metal atom, etc. The term nonactive as used herein denotes the absence of any physiological, pharmacological or biological affect attributed to the elemental material.
DESIGNATED INORGANIC NONACTIVE INGREDIENT
Denotes an inorganic compound which is identified by at least one chemical atom, e.g., sodium-containing, etc., or is identified as a generic type of inorganic chemical compound, e.g., alkali metal-containing, etc. The term nonactive as used herein denotes the absence of any physiological, pharmacological or biological affect attributed to the inorganic material.
DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI) DENOTES
(1) The active ingredient is identified by at least one chemical atom, e.g., organic phosphorus compound, etc., or (2) The active ingredient is identified as a generic type of chemical atom, e.g., alcohol, ether, etc. The term active denotes the presence of a physiological, pharmacological or biological affect.
DESIGNATED ORGANIC NONACTIVE INGREDIENT DENOTES
(1) A nonactive ingredient is identified by at least one chemical atom or (2) the nonactive ingredient is identified as a generic type of chemical compound, e.g., starch, etc. The term nonactive denotes the absence of any physiological, pharmacological or biological affect attributed to the organic material.
ETHER
Denotes an organic compound having oxygen bonded directly to two carbon atoms, which carbons cannot be double bonded to oxygen, sulfur, selenium, or tellurium, or triple bonded to nitrogen.
FATTY ACID
Denotes an aliphatic monocarboxylic acid having an unbroken chain of at least seven carbon atoms bonded to the carboxyl group.
FUSED OR BRIDGED RING SYSTEM
Denotes a ring system having at least two rings which (a) share with each other two adjacent ring atoms, or (b) share
with each other three or more ring atoms and wherein each ring having shared atoms is either a heterocyclic ring or a carbocyclic ring.
HALOGENATED HYDROCARBON
Denotes a compound containing only carbon, hydrogen, and halogen, or only carbon and halogen.
HETERO RING
Denotes the presence of one or more carbon atoms covalently bonded in a closed ring with at least one atom of oxygen, nitrogen, sulfur, selenium or tellurium and having no other atoms in the ring.
INCLUDING HYDROGENATED
Denotes that a ring system which by definition has ring unsaturation possesses a degree of saturation which may be different than the ring system definition would normally indicate.
KETONE (INCLUDING KETENE)
Denotes an organic compound having the general structure -C-{C(=O)}[subscrpt]n[end subscrpt] -C- (n is 1 or more) and wherein[subscrpt] [end subscrpt]the carbon atoms bonded to the-{C(=O)}[subscrpt]n [end subscrpt]group are not double bonded to oxygen, sulfur, selenium, or tellurium. Ketone as used throughout includes ketene.
NONIONIC BONDING
As used in regard to bonding or attachment of specified moieties denotes the absence of ionic bonding between the moieties. If the moieties are attached directly, the bonds between them must be covalent or coordinate. If the moieties are attached indirectly, each atom of the connecting chain must be attached by covalent or coordinate bonding to another atom of the connecting chain or to one of the moieties. However, the connecting chain may have substituents thereon which include ionic bonding. Some examples will be given of compounds which could be classified in a subclass having the following titles: "Oxygen attached indirectly to the six-membered hetero ring by nonionic bonding". [figure] [figure]
POLYCYCLO RING SYSTEM
This term denotes a compound which contains fused or bridged rings. The polycyclo ring system must contain at least two rings and each ring of the system must share two or more of its atoms with another ring of the system. All ring members must be attached to each other by nonionic bonding. The polycyclo ring system is usually only a moiety within a compound. Indents such as bicyclo and tricyclo are meant to
limit the number of rings or cyclos in the polycyclo ring system to exactly two rings and three rings, respectively.
For polycyclo systems having bridges it should be remembered that the system is regarded as composed only of the smallest number of smallest rings that will account for all atoms and valences. This is in accord with the nomenclature employed by The Ring Index. Second Edition, (1960). [figure] [figure] [figure] [figure]
SPIRO AND SPIRO RING SYSTEM
These terms denote the sharing of one common ring member only by exactly two rings. The following two structures are illustrative: [figure] [figure]
TRICYCLO RING SYSTEM
This term denotes a polycyclo ring system which contains exactly three rings.

DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI):
Subject matter under Class 424 definition which contains a designated organic active ingredient, e.g., coal tar, coal tar oil, etc.
(1) Note. See Class Definition, Glossary, for the definition of "DOAI".

SEE OR SEARCH THIS CLASS, SUBCLASS:
731 for a composition containing creosote or a coal tar acid.
800 and 801-809, for art collections pertaining to subclasses 1-21.

SEE OR SEARCH CLASS:
208, Mineral Oils: Processes and Products, subclass 2 for a coal tar or coal tar oil which has the property of killing, repelling or preventing the growth of insects, fungi or bacteria and the process of preparing same.

Peptide containing (e.g., protein, peptones, fibrinogen, etc.) DOAI:
This subclass is indented under subclass 1. Subject matter which contains a protein or its reaction product, e.g., peptides, peptones, fibrinogen, etc., wherein the protein molecule is not degraded to the constituent amino-acids.
(1) Note. The term peptide unit used herein is intended to mean the group N-C-(=O) or beta-alanine.

SEE OR SEARCH THIS CLASS, SUBCLASS:
183 for ergot.
192 for penicillin.
200 for cephalosporins.

SEE OR SEARCH CLASS:
260, Chemistry of Carbon Compounds, subclass 112 for a protein, per se, of unknown structure and method of preparing same; and subclass 112.5 for a protein, per se, of known structure.
930, Peptide or Protein Sequence, 10 for peptide or protein sequences or four or more amino acids.

Insulin or derivative:
This subclass is indented under subclass 2. Subject matter identical to the extract of the pancreas, known as insulin or a derivative thereof, in which neither a peptide chain nor a disulfide link between chains is broken.
(1) Note. While the position and/or kind of amino acids in the chain(s) may vary (depending on the animal from which derived), it appears that insulin contains at least an "A" chain of 21 acid units linked by disulfide moieties to a "B". An additional disulfide moiety bridges the 6 and 11 positions of chain A.

SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for an animal extract obtained from the pancreas.

SEE OR SEARCH CLASS:
260, Chemistry of Carbon Compounds, subclass 112.5 for a polypeptide of known chemical structure, and subclass 112.7 for insulin, per se.

With an additional active ingredient:
This subclass is indented under subclass 3. Subject matter which contains insulin and an additional active ingredient.
(1) Note. For the subclass an organic potentiator for insulin is considered an active ingredient.

Iodine containing:
This subclass is indented under subclass 2. Subject matter in which the peptide moiety contains iodine or the peptide moiety is reacted with or complexed to iodine containing compound.

SEE OR SEARCH CLASS:
930, Peptide or Protein Sequence, subclass 22 for peptide or protein sequences containing an amino acid modified with a radioactive iodine and subclass 23 for sequences containing an amino acid modified with a regular iodine.

Heavy metal containing (e.g., hemoglobin, etc.):
This subclass is indented under subclass 2. Subject matter which contains a heavy metal atom.
(1) Note. See Glossary for a definition of the term heavy metal.

SEE OR SEARCH CLASS:
260, Chemistry of Carbon Compounds, 113 for known polypeptide compound containing a heavy metal atom.
930, Peptide or Protein Sequence, subclass 25 for peptide or protein sequences containing an amino acid modified with a heavy metal.

Phosphorus containing:
This subclass is indented under subclass 2. Subject matter which contains phosphorus in the peptide compound.

Glycoprotein (carbohydrate containing):
This subclass is indented under subclass 2. Subject matter which contains a carbohydrate or derivative thereof attached to the peptide.

Cyclopeptide:
This subclass is indented under subclass 2. Subject matter wherein the amino acid chain forms a cyclic structure; said cyclo structures can be formed by peptide bonding, disulfide bonding, hydrocarbon bonding or other types of connection that define the cyclo structures as having at least a dipeptide as an integral part thereof.

SEE OR SEARCH CLASS:
930, Peptide or Protein Sequence, subclass 260 for peptides or proteins with intrachain cysteine-cysteine bridges and subclass 270 for other cyclic peptides or proteins.

Bicyclic:
This subclass is indented under subclass 9. Subject matter wherein a compound has two cyclic groups containing an amino acid chain.

Monocyclic:
This subclass is indented under subclass 9. Subject matter wherein a compound has only one cyclic group containing an amino acid chain.

25 or more peptide repeating units in known peptide chain structure:
This subclass is indented under subclass 2. Subject matter wherein a peptide chain has 25 or more peptide units in an uninterrupted chain.

16 to 24 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains as uninterrupted peptide chain of 16 to 24 peptide units.

12 to 15 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains an uninterrupted peptide chain of 12 to 15 peptide units.

9 to 11 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains an uninterrupted peptide chain of 9 to 11 peptide units.

7 or 8 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains an uninterrupted peptide chain of 7 or 8 peptide units.

5 or 6 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains an uninterrupted peptide chain 5 or 6 peptide units.

3 or 4 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains an uninterrupted peptide chain of 3 or 4 peptide units.

2 peptide repeating units in known peptide chain:
This subclass is indented under subclass 2. Subject matter which contains an uninterrupted peptide chain of 2 peptide units.

Guanidine containing:
This subclass is indented under subclass 19. Subject matter wherein the peptide compound contains the guanidine group.

Produced by or extracted from animal tissue:
This subclass is indented under subclass 2. Subject matter which is derived from animal material.

SEE OR SEARCH THIS CLASS, SUBCLASS:
800 and 801-809, for art collections pertaining to subclasses 1-21.

Lignin or derivative DOAI:
This subclass is indented under subclass 1. Subject matter wherein the organic active ingredient is lignin or a reaction derivative thereof, e.g., lignin sulfonate, etc.
(1) Note. Lignin is a noncarbohydrate, polymeric substance found in wood. It is isolated directly from wood or wood products or from the treatment of wood, e.g., waste sulfite liquor or black liquor. The structure of the lignin monomer is not completely known.

Carbohydrate (i.e., saccharide radical containing) DOAI:
This subclass is indented under subclass 1. Subject matter wherein the organic active ingredient is a saccharide or polysaccharide, the monomeric saccharide radical units of which contain at least five carbon atoms, or their reaction products wherein the carbon skeleton of the saccharide or polysaccharide of the unit is not destroyed.
(1) Note. Included herein is cellulose, cellulose derivatives, starch, starch derivatives, tannins, O-glycosides, N-glycosides and S-glycosides.
(2) Note. Alcohols and acids corresponding to carbohydrates are excluded.
(3) Note. Cascara sagrada is excluded herefrom and is classified with plant extracts. See Search Notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for a composition containing riboflavin DOAI.

SEE OR SEARCH CLASS:
424, Drug, Bio-Affecting and Body Treating Compositions, subclass 195.1 for plant extracts

S-glycoside:
This subclass is indented under subclass 23. Subject matter wherein the saccharide is a thioacetal derivative of a cyclic form of sugars in which the hydrogen atom of the hemithioacetal sulfhydryl group has been replaced by an alkyl, aralkyl or aryl group.
(1) Note. A S-glycoside is a compound having a sugar moiety connected to an aglycone moiety via sulfur.
(2) Note. An aglycone is a noncarbohydrate material, e.g., benzene, indoxyl, alkyl, anthracene, etc.
(3) Note. The cyclic sugars referred to in the definition are normally pyranoses or furanoses.
(4) Note. Glycosides derived from aldoeses are referred to as aldosides, and those ketoses are ketosides.

O-glycoside:
This subclass is indented under subclass 23. Subject matter wherein the saccharide is an acetal derivative of a cyclic form of sugars in which the hydrogen atom of the hemiacetal hydroxyl has been replaced by an alkyl, aralkyl or aryl group.
(1) Note. An O-glycoside is a compound having a sugar moiety connected to an aglycone moiety via oxygen.

Cyclopentanohydrophenanthrene ring system:
This subclass is indented under subclass 25. Subject matter wherein an aglycone moiety of the glycoside contains a cyclopentanohydrophenanthrene nucleus, i.e., [figure]

Oxygen of the saccharide radical bonded directly to a nonsaccharide hetero ring or a polycyclo ring system which contains a nonsaccharide hetero ring:
This subclass is indented under subclass 25. Subject matter wherein a nonsaccharide hetero ring or a fused or bridged ring system which contains a nonsaccharide hetero ring is attached to an oxygen of the saccharide radical, e.g., [figure]

The hetero ring has 8 or more ring carbons:
This subclass is indented under subclass 27. Subject mater wherein the nonsaccharide hetero ring has eight or more ring carbon members.

The hetero ring has exactly 13 ring carbons (e.g., erythromycin, etc.):
This subclass is indented under subclass 28. Subject matter wherein the nonsaccharide hetero ring has exactly 13 carbon atoms, e.g., erythromycin, etc.

The hetero ring has exactly 15 ring carbons:
This subclass is indented under subclass 28. Subject matter wherein the nonsaccharide hetero ring has exactly 15 carbon atoms.

The hetero ring has 20 or more ring carbons (e.g., nystatin, etc.):
This subclass is indented under subclass 28. Subject matter wherein the nonsaccharide hetero ring has 20 or more ring carbon atoms, e.g., nystatin, etc.

Oxygen of the saccharide radical bonded to a nonsaccharide hetero ring by acyclic carbon bonding:
This subclass is indented under subclass 25. Subject matter wherein a hetero ring or polycyclo ring system which contains a nonsaccharide hetero ring is directly linked to an oxygen of the saccharide radical directly through only acyclic carbon bonding, e.g., [figure]

Oxygen of the saccharide radical bonded directly to a polyclo ring system of three or more carbocyclic rings:
This subclass is indented under subclass 25. Subject matter wherein the oxygen of the saccharide radical is directly bonded to a polycyclo ring system of three or more carbocyclic rings.

Oxygen of the saccharide radical bonded directly to a polycyclo ring system of four carbocyclic rings (e.g., daunomycin, etc.):
This subclass is indented under subclass 33. Subject matter wherein the oxygen of the saccharide radical is directly
bonded to a polycyclo ring system of exactly four carbocyclic rings.

Oxygen of the saccharide radical bonded directly to a cyclohexyl ring:
This subclass is indented under subclass 25. Subject matter wherein a cyclohexyl radical is bonded directly to an oxygen of the saccharide radical, e.g., [figure]

Two or more nitrogen atoms bonded directly to the cyclohexyl ring:
This subclass is indented under subclass 35. Subject matter wherein two or more nitrogen atoms are bonded directly to the cyclohexyl radical, e.g., [figure]

The nitrogen atoms are in N-C(=N)-N groups (e.g, streptomycin, etc.):
This subclass is indented under subclass 36. Subject matter wherein all the nitrogen atoms which are bonded directly to the cyclohexyl group are part of a N-C(=N)-N group, e.g., [figure] [caption], etc.

Two saccharide radicals bonded through only oxygen to adjacent ring carbons of the cyclohexyl ring:
This subclass is indented under subclass 36. Subject matter wherein the cyclohexyl radical is separately, independently and directly bonded through only oxygen of two saccharide radicals at adjacent ring carbons, e.g., [figure] [caption], etc.

Three or more saccharide radicals (e.g., neomycin, etc.):
This subclass is indented under subclass 38. Subject matter
wherein the cyclohexyl radical is bonded directly or indirectly to three or more saccharide radicals, e.g., [figure] [caption], etc.

Two saccharide radicals bonded through only oxygen to 4- and 6- positions of the cyclohexyl ring:
This subclass is indented under subclass 36. Subject matter wherein the cyclohexyl radical is separately, independently and directly bonded through only oxygen of two saccharide radicals at the 4- and 6- position carbons of the cyclohexyl ring, e.g., [figure] [caption], etc.

Kanamycin or derivative:
This subclass is indented under subclass 40. Subject matter wherein the organic active ingredient is Kanamycin or a derivative thereof, i.e., as illustrated below, wherein R is NH[subscrpt]2[end subscrpt] and R' is NH[subscrpt]2[end subscrpt] or OH. [figure] [caption]Kanosamin, deoxystreptamine

N-glycoside:
This subclass is indented under subclass 23. Subject matter wherein the saccharide is a glycosidic derivative or the cyclic form of saccharides or polysaccharides in which an aglycone portion is attached through nitrogen to the saccharide moiety by substituting it for the hemiacetal hydroxyl of the sugar.
(1) Note. The aglycone can be noncyclic.

Nitrogen containing hetero ring:
This subclass is indented under subclass 42. Subject matter wherein the aglycone portion contains a nitrogen containing hetero ring.

Polynucleotide (e.g., RNA, DNA, etc.):
This subclass is indented under subclass 43. Subject matter which has the following structure, illustrated below, wherein n is a whole number equal or greater than two, R' is H or OH and R" is purine or pyrimidine or a substituted purine or pyrimidine. [figure]
(1) Note. Substituted pyrimidine or purine includes only those derivatives which are substituted on rather than in the respective ring position, i.e., illustrated below, is present in the structure. The internal ring bonding may be altered by tautomerism or by the addition of substituents without excluding a compound from this subclass. [figure] [caption]Or [figure]

SEE OR SEARCH CLASS:
536, Organic Compounds, appropriate subclasses for nucleosides, nucleotides and polynucleotides like RNA or DNA compounds as well as chemical methods for synthesizing these compounds. Search specifically 23.1 for fragments of DNA which could have utility in recombinant processes or gene therapy and subclasses 26.4+ for vitamin B-12 and its derivatives.

Purines (including hydrogenated) (e.g., adenine, guanine, etc.):
This subclass is indented under subclass 43. Subject matter wherein the hetero ring is a purine, as illustrated below, or substituted purine. [figure]

Adenosine or derivative:
This subclass is indented under subclass 45. Subject matter wherein the compound is adenosine, illustrated below, or derivative thereof. [figure]

Phosphorus containing:
This subclass is indented under subclass 46. Subject matter wherein the adenosine or derivative thereof contains
phosphorus.

Phosphorus containing:
This subclass is indented under subclass 45. Subject matter wherein the purine compound contains phosphorus.

Pyrimidines (including hydrogenated) (e.g., cytosine, etc.):
This subclass is indented under subclass 43. Subject matter wherein the hetero ring is a pyrimidine, as illustrated below, or substituted pyrimidine.
(1) Note. The structure below shows the position numbering used for 1, 3-diazines. [figure]

2, 4-diketone pyrimidine or derivative (e.g., uracil, etc.):
This subclass is indented under subclass 49. Subject matter wherein oxygen atoms are directly double bonded to the 2 and 4 positions of the pyrimidine ring, e.g., [figure] [caption], etc.

Phosphorus containing:
This subclass is indented under subclass 50. Subject matter wherein the 2, 4-diketone pyrimidine compound contains phosphorus.

Phosphorus containing (e.g., vitamin B12, etc.):
This subclass is indented under subclass 43. Subject matter which contains phosphorus.

Disaccharide:
This subclass is indented under subclass 23. Subject matter wherein the organic active ingredient contains two saccharide radicals bonded via a glycosidic linkage and which on hydrolysis yields two units of monosaccharides (e.g., sucrose, lactose, maltose, etc.).

This subclass is indented under subclass 23. Subject matter wherein the organic active ingredient contains more than two saccharide radicals directly or indirectly bonded together.

Chitin or derivative:
This subclass is indented under subclass 54. wherein the polysaccharide has the following repeating units: [figure] [caption]Repeating unit of chitin.

Heparin or derivative:
This subclass is indented under subclass 54. Subject matter wherein the polysaccharide has the following repeating unit, illustrated below, wherein the degree of sulfation of the individual components in the polysaccharide chain, and derivatives thereof.
(1) Note. Heparin is a substance which can be found in various tissues of mammals, especially the lung, spleen, liver and muscle, and has been used medicinally for coagulation of blood and metabolism of lipids.

Cellulose or derivative:
This subclass is indented under subclass 54. Subject matter wherein the polysaccharide consists of repeating glucose units having the following structure: [figure]

Dextrin or derivative:
This subclass is indented under subclass 54. Subject matter wherein the polysaccharide consists of various gummy polysaccharides produced by thermal or acid degradation of starch, and derivatives of such compounds.
(1) Note. Dextrins are carbohydrates, intermediate between starch and sugars. Degradation of dextrins yields maltose and glucose.
(2) Note. Derivatives of dextrins which remain gummy polysaccharides are classified herein.

Dextran or derivative:
This subclass is indented under subclass 54. wherein the polysaccharide is composed of D-glucose units which are linked by 1, 6 glucosidic bonds.
(1) Note. Dextrin and dextrine are not variant spelling of "Dextran", instead they are respectively a starch hydrolysis product and a variant spelling of dextrin.
(2) Note. Controlled hydrolysis of native dextran yields clinical dextran of lower molecular weight which is useful as a blood plasma substitute.

Starch or derivative:
This subclass is indented under subclass 54. Subject matter wherein the polysaccharide has amylose and amylopectin as their main components.
(1) Note. Starches are heterogeneous in that the amylose and amylopectin occur in different ratios to each other.
(2) Note. Starches yield dextrins upon extensive thermal of acid degradation and yield glucose upon completed hydrolysis.

Tri- or tetrasaccharide:
This subclass is indented under subclass 23. Subject matter wherein a glucose moiety is substituted with one or more amino groups, or derivative thereof.

Silicon containing DOAI:
This subclass is indented under subclass 23. Subject matter wherein a glucose moiety is substituted with one or more amino groups, or derivative thereof.

Silicon containing DOAI:
This subclass is indented under subclass 1. Subject matter in which the organic active ingredient contains silicon.

Boron containing DOAI:
This subclass is indented under subclass 1. in which the organic active ingredient contains boron.

Pyrethrum plant derived material or plant derive rotenone compound containing DOAI:
This subclass is indented under subclass 1. Subject matter which contains pyrethrum plant derived material or plant derived rotenone compound containing material, e.g., ground pyrethrum flowers or extract of cube root or derris root, etc.
(1) Note. This subclass does not contain chemically identified derivatives of naturally occurring pyrethrum plant derived material or plant derived rotenone containing material since such derivatives are classified on the basis of the chemical structure.
(2) Note. Synthetically produced active compounds which would be identical with the active constituents of pyrethrum or rotenone containing plant such as derris root, cube root are not classified herein but are classified of the chemical structure of the synthetically produced compound. See, for
example, subclass 531 for allethrins.
(3) Note. The active constituents of pyrethrum includes pyrethrins I and II, cinerins I and II and jasmolins I and II.

With heterocyclic compound:
This subclass is indented under subclass 65. Subject matter which contains a heterocyclic compound in addition to the pyrethrum derived material or plant derived rotenone compound.

Methlenedioxyphenyl group containing (e.g., piperonyl butoxide, etc.):
This subclass is indented under subclass 66. Subject matter which contains methylenedioxyphenyl group, e.g., [figure] [caption], etc.

With carboxylic acid ester:
This subclass is indented under subclass 65. Subject matter which contains a carboxylic acid ester in addition to the pyrethrum derived material or plant derived rotenone compound.

With carboxylic acid metal salt:
This subclass is indented under subclass 65. Subject matter which contains a carboxylic acid metal salt in addition to the pyrethrum derived material or plant derived rotenone compound.

With organic nitrogen containing compound:
This subclass is indented under subclass 65. Subject matter
which contains a nitrogen containing organic compound in addition to the pyrethrum derived material or plant derived rotenone compound.

Sulfur containing organic nitrogen compound:
This subclass is indented under subclass 70. Subject matter wherein the nitrogen containing organic compound contains sulfur.

With organic oxygen containing compound:
This subclass is indented under subclass 65. Subject matter which contains oxygen containing organic compound in addition to the pyrethrum derived material or plant derived rotenone compound.

Phosphorus or halogen containing organic oxygen compound:
This subclass is indented under subclass 72. Subject matter wherein the oxygen containing organic compound contains phosphorus or halogen.

With hydrocarbon or halohydrocarbon:
This subclass is indented under subclass 65. Subject matter which contains hydrocarbon or halohydrocarbon in addition to the pyrethrum derived material or plant derived rotenone compound.

Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI:
This subclass is indented under subclass 1. Subject matter wherein the organic active ingredient contains a phosphorus atom.
(1) Note. Inorganic phosphorus salts of the organic active ingredient are excluded herefrom and classified with the active moiety.

Amine addition salt of organic phosphorus containing acid:
This subclass is indented under subclass 75. Subject matter wherein the organic active ingredient is an amine addition salt of the phosphorus compound, wherein said salt forming group is the nitrogen atom of said amine, e.g., [figure] [caption], etc.

Inner salt (e.g., betaine, etc.):
This subclass is indented under subclass 75. Subject matter wherein the organic active ingredient is an inner salt, e.g., [figure] [figure] [caption], etc.

Lecithins:
This subclass is indented under subclass 77. Subject matter wherein the inner salt contains the following structurewherein R is an organic radical. [figure] [caption], etc.

Nitrogen containing hetero ring:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains a heterocyclic ring containing nitrogen as a hetero atom.

Polycyclo ring system having a ring nitrogen in the system:
This subclass is indented under subclass 79. Subject matter in which the organo-phosphorus compound contains a polycyclo ring system (bridged or fused), e.g., [figure] [caption], etc.

Nonshared hetero atoms in at least two rings of the polycyclo ring system:
This subclass is indented under subclass 80. Subject matter in which the organo-phosphorus compound contains a polycyclo ring system which contains nonshared hetero atoms in at least two rings of the polycyclo ring systems, e.g., [figure] [caption], etc.

Quinolinyl or isoquinolinyl (including hydrogenated):
This subclass is indented under subclass 80. Subject matter in which the organo-phosphorus compound contains a quinolinyl or isoquinolinyl group, (including hydrogenated).

Hetero ring is three-membered consisting of one nitrogen and two carbons:
This subclass is indented under subclass 79. Subject matter in which the organo-phosphorus compound contains a three-membered heterocyclic ring which contains one nitrogen and two carbons.

Hetero ring is six-membered consisting of three nitrogens and three carbons:
This subclass is indented under subclass 79. Subject matter in which the organo-phosphorus compound contains a six-membered heterocyclic ring which consists of three nitrogens and three carbons.

Hetero ring is six-membered consisting of two nitrogens and four carbons:
This subclass is indented under subclass 79. Subject matter in which the organo-phosphorus compound contains a
six-membered heterocyclic ring which consists of two nitrogens and four carbons.

Nitrogen atoms occupy 1 and 3- positions:
This subclass is indented under subclass 85. Subject matter wherein the nitrogen atoms are at the 1- and 3- position of the six member ring, i.e., 1, 3-diazines.

PX- bonded directly to 1, 3-diazine at 2-position (X is chalcogen):
This subclass is indented under subclass 86. Subject matter in which a PX- is bonded directly to the 1,3-diazine at the 2-position. (X is chalcogen), e.g., [figure] [caption], etc.

Two or more PX- groups attached to the same 1,3-diazine (X is chalcogen):
This subclass is indented under subclass 86. in which at least two PX's are bonded directly to the 1,3-diazine moiety, e.g., [figure] [caption], etc.

Hetero ring is six-membered and includes only one ring nitrogen:
This subclass is indented under subclass 79. Subject matter in which the organo-phosphorus compound contains a heterocyclic ring which has six members and includes only one therein, e.g., [figure] [caption], etc.

Chalcogen in the six-membered hetero ring:
This subclass is indented under subclass 89. Subject matter in which the organo-phosphorus compound contains a six-membered heterocyclic ring which also contains a
chalcogen atom as well as the nitrogen, e.g., [figure] [caption], etc.

Hetero ring is five-membered:
This subclass is indented under subclass 79. Subject matter in which the organo-phosphorus compound contains a heterocyclic moiety which has five members.

Two or more hetero atoms in the five-membered ring:
This subclass is indented under subclass 91. Subject matter in which the organo-phosphorus compound contains a five-membered heterocyclic moiety which contains two or more hetero atoms.

Triazoles (including hydrogenated):
This subclass is indented under subclass 92. Subject matter in which the organo-phosphorus compound contains a five-membered heterocyclic moiety which consists of three nitrogens and two carbons.

Diazoles (including hydrogenated):
This subclass is indented under subclass 92. Subject matter in which the organo-phosphorus compound contains a five-membered heterocyclic moiety which contains two nitrogens and three carbons.

Sulfur containing hetero ring:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains a heterocyclic ring which contains at least one sulfur atom as a ring member.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 95. Subject matter in which the organo-phosphorus compound contains a bridged or fused ring system which has a heterocyclic sulfur containing ring as one of the cyclos.

Two or more sulfurs in the hetero ring:
This subclass is indented under subclass 95. Subject matter in which the organo-phosphorus compound contains at least two sulfur atoms as ring members.

Oxygen in the hetero ring:
This subclass is indented under subclass 95. Subject matter in which the organo-phosphorus compound contains a heterocyclic ring which contains at least one sulfur atom and at least one oxygen atom as ring members.

Oxygen containing hetero ring:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains at least one oxygen atom as a ring member.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 99. Subject matter in which the organo-phosphorus compound contains a fused or bridged ring system which contains a heterocyclic oxygen-containing ring as one of the cyclos.

Two or more oxygen in the hetero ring:
This subclass is indented under subclass 99. Subject matter in which the organo-phosphorus compound contains a heterocyclic ring which contains at least two oxygen atoms as ring members.

Two or more phosphorus atoms directly or indirectly bonded together by only covalent bonds:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains at least two nonionically bonded phosphorus atoms.
(1) Note. Organic phosphorus salts and complexes of a phosphorus containing compound and other compounds are excluded unless the phosphorus containing moiety has at least two nonionically bonded phosphorus atoms, e.g., [figure] [caption], etc.

Phosphorus acid ester of polyhydric alcohol or thioalcohol(e.g., P-X-R-X-P group, etc., wherein X is chalcogen and R is the residue of the polyhydric alcohol or thioalcohol):
This subclass is indented under subclass 102. Subject matter in which the organo-phosphorus compound is a phosphorus acid ester of a polyhydric alcohol or thioalcohol, e.g., P-X-(R) XP group, etc., wherein X is chalcogen and R is the residue of a polyhydric alcohol.

Benzene ring in the alcohol moiety:
This subclass is indented under subclass 103. Subject matter in which the polyphosphorus compound corresponds to the structure -P-X-(R)-X-P-, wherein R is the residue of a polyhydric alcohol which is aromatic in nature (i.e., contains a benzene ring and wherein X is chalcogen).

Phosphorus is part of a ring:
This subclass is indented under subclass 102. Subject matter in which a phosphorus atom is part of a ring, e.g., [figure] [caption], etc.

P-O-P or P-S-P containing (e.g., anhydrides, etc.):
This subclass is indented under subclass 102. Subject matter which contains a polyphosphorus compound wherein two phosphorus atoms are linked to each other through a single oxygen or sulfur (i.e., P-O-P OR P-S-P).

Benzene ring containing:
This subclass is indented under subclass 102. Subject matter in which the phosphorus compound contains a benzene ring.

Acyclic and contains at least one carbon atom between the phosphorus atoms:
This subclass is indented under subclass 102. Subject matter in which the phosphorus compound is acyclic and contains at least one carbon between the phosphorus atoms.

P-X-X containing (X is chalcogen):
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound has a single phosphorus atom linked directly to a chalcogen atom which in turn is linked directly to another chalcogen atom, e.g., as illustrated below, wherein X is chalcogen. [figure] [caption], etc.

Phosphorus is part of a ring:
This subclass is indented under subclass 75. Subject matter
in which the organo-phosphorus compound contains the phosphorus atom as part of a ring, e.g., [figure] [caption], etc.

Polycyclo ring system having the phosphorus containing ring as one of the cyclos:
This subclass is indented under subclass 110. Subject matter in which the organo-phosphorus compound contains a fused ring system or bridged ring system of which the phosphorus containing ring is a part, e.g., [figure] [caption], etc.

Cyano or isocyano containing:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains at least one nitrile or isonitrile radical bonded to a carbon.

Cyano or isocyano bonded directly to a benzene ring:
This subclass is indented under subclass 1. Subject matter in which the nitrile or isonitrile radical bonded to a benzene ring.

Nitrogen, other than nitro or nitroso, bonded indirectly to phosphorus:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains a nitrogen, other than nitro or nitroso, which is not directly bonded to the phosphorus atom, e.g., [figure] [figure] [caption], etc.

N-C(=X)-N containing (S is chalcogen):
This subclass is indented under subclass 114. Subject matter in which the organo-phosphorus compound contains the radical NN wherein X is chalcogen.

Sulfur single bonded directly to nitrogen:
This subclass is indented under subclass 114. Subject matter in which the organo-phosphorus compound contains a sulfur atom which is directly bonded to a nitrogen by a single bond.

N-(=O)S(=O) containing (i.e., sulfonamides):
This subclass is indented under subclass 116. Subject matter in which the organo-phosphorus compound contains the sulfonamido group, e.g., [figure] [figure] [caption], etc.

Phosphorus single bonded directly to nitrogen:
This subclass is indented under subclass 114. Subject matter in which the organo-phosphorus compound contains a nitrogen which is directly bonded to a phosphorus atom by a single bond, e.g., [figure] [caption], etc.

C(=O)N containing:
This subclass is indented under subclass 114. Subject matter in which the organo-phosphorus compound contains an amido group, e.g., [figure] [caption], etc.

C=O other than as ketone or aldehyde, attached directly or indirectly to phosphorus:
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound contains a carbonyl group, other than as ketone or aldehyde, e.g., [figure] [caption], etc.

Plural C=O groups, other than as ketone or aldehyde:
This subclass is indented under subclass 120. Subject matter wherein the organo-phosphorus compound contains two C=O groups which are other than a ketone or aldehyde, e.g., [figure] [caption], etc.

Malathion:
This subclass is indented under subclass 121. Subject matter wherein the organo-phosphorus compound is malathion, i.e., [figure] [caption], etc.

With N-C(=O)-O containing compound:
This subclass is indented under subclass 122. Subject matter wherein another compound is present, along with malathion, which has the N(C=O)-O group therein, e.g., [figure] [caption], etc.

C=O, other than as ketone or aldehyde, attached to a benzene ring:
This subclass is indented under subclass 120. Subject Matter wherein the organo-phosphorus compound contains a C=O group other than as ketone or aldehyde attached directly to a benzene ring, e.g., [figure] [caption], etc.

Ketone or aldehyde containing:
This subclass is indented under subclass 75. Subject matter wherein the organo-phosphorus compound contains at least one carbonyl group in the form of an aldehyde or ketone.

Sulfur not bonded directly to phosphorus:
This subclass is indented under subclass 126. Subject matter in which the organo-phosphorus compound contains sulfur and wherein said sulfur is not bonded directly to the phosphorus atom.

Thioether, sulfoxide or sulfone:
This subclass is indented under subclass 126. Subject matter in which the organo-phosphorus compound contains sulfur in the form of a thioether, sulfoxide or sulfone group.
(1) Note. This subclass contains the groups: C-S-C; C- C, and C- C

Sulfur bonded directly to a benzene ring:
This subclass is indented under subclass 127. Subject matter wherein the sulfur is directly bonded to a carbon of a benzene ring.

Oxygen bonded directly to a carbon or hydrogen and wherein the oxygen is not bonded directly to phosphorus:
This subclass is indented under subclass 75. Subject matter wherein the organo-phosphorus compound contains an oxygen which is bonded directly to a carbon or hydrogen and wherein the oxygen is not bonded to phosphorus, e.g ., [figure] [figure] [caption], etc.

The oxygen is bonded directly to a benzene ring:
This subclass is indented under subclass 129. Subject matter wherein the oxygen therein is directly bonded to a benzene ring.

Nitro group bonded to a carbon:
This subclass is indented under subclass 75. Subject matter wherein the organo-phosphorus compound contains at least one nitro substituent bonded to a carbon.

Nitro group is directly bonded to a benzene ring which benzene ring is either bonded directly bonded to phosphorus or indirectly bonded to phosphorus through a chalcogen:
This subclass is indented under subclass 131. Subject matter wherein the nitro is directly attached to a benzene ring which is directly bonded to phosphorus, or indirectly bonded to phosphorus through a chalcogen, e.g., [figure] [caption], etc.

Two or more such benzene rings:
This subclass is indented under subclass 132. Subject matter wherein two or more such nitro substituted benzene rings are present.

Acyclic carbon to carbon unsaturation:
This subclass is indented under subclass 75. Subject matter wherein the organo-phosphorus compound has at least one unsaturated group between adjacent carbon atoms and wherein said unsaturation is present other than as an aromatic compound, e.g., [figure] [caption], etc.

This subclass is indented under subclass 134. Subject matter wherein the unsaturation is in the form of a triple bond, e.g., [figure] [caption], etc.

Phosphate ester having three ester groups (e.g., DDVP, etc.):
This subclass is indented under subclass 134. Subject matter wherein the organo-phosphorus compound is a triester of otho-phosphoric acid, e.g., as illustrated below, or sulfur analog thereof, etc. [figure]

Nitrogen bonded directly to phosphorus:
This subclass is indented under subclass 75. Subject matter wherein the organo-phosphorus compound has at least one phosphorus to nitrogen bond.

SEE OR SEARCH THIS CLASS, SUBCLASS:
118 when another nitrogen atom other than nitro or nitroso is present in the molecule which nitrogen is not directly bonded to phosphorus.

N-P-N or N-N-P containing:
This subclass is indented under subclass 137. Subject matter wherein the organo-phosphorus compound has a N-P-N or N-N-P chain therein.

Phosphorus bonded directly to halogen:
This subclass is indented under subclass 75. Subject matter wherein the organo-phosphorus compound has at least one phosphorus to halogen bond.

(C)(R)P=X(-XC) containing (i.e., phosphinate) (X is chalcogen; R is C or H):
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound is an ester of phosphinic acid, illustrated below, wherein R and R' are organic radicals and X is chalcogen. [figure]

(CX-) (C) P=X (XH) OR (CX-) (R) P=X (XC) containing (e.g., phosphonate, etc.):
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound is an ester of phosphonic acid, illustrated below, wherein R is an organic radical and X is chalcogen. [figure]

(CX-)(C)P(C),(CX-)(RX-)P (C), (CX-) P (XH)(XH or (CX-)P(-XR) containing (X is chalcogen: R is C or H) (e.g., phosphinite, phosphonite, phosphite, etc.):
This subclass is indented under subclass 75. Subject matter in which the organo-phosphorus compound is (a) an ester or phosphinous acid (i.e., first illustration below), (b) an ester of phosphonous acid, as in the second illustration, below, or (c) an ester of phosphorus acid, as in the third illustration, below, wherein R or R in any of the above formulas is an organic radical and X is chalcogen. [figure]

Ester or (HX) P=X (XH) (XH) (X is chalcogen) (e.g., phosphate, etc.):
This subclass is indented under subclass 775. Subject matter in which the organo-phosphorus compound is an ester of an acid whose structural formula is, as illustrated below, wherein X is chalcogen. [figure]

Triester:
This subclass is indented under subclass 143. Subject matter which the organo-phosphorus compound is a triester of orthophosphoric acid, illustrated below, wherein X is chalcogen. [figure]

Three benzene rings bonded directly to chalcogen:
This subclass is indented under subclass 144. Subject matter wherein the organo-phosphorus compound has three benzene rings attached directly to chalcogens which are bonded
directly to a single phosphorus atom.

SEE OR SEARCH THIS CLASS, SUBCLASS:
146 for the compound, illustrated below, which is considered to have only two benzene rings attached to chalcogens which are bonded directly to phosphorus. [figure]

Two benzene rings bonded directly to chalcogen:
This subclass is indented under subclass 144. Subject matter wherein the organo-phosphorus compound has at least two benzene rings attached directly to chalcogens which are bonded to a single phosphorus atom.

SEE OR SEARCH THIS CLASS, SUBCLASS:
147 for the compound, illustrated below, which is considered to have only one benzene ring bonded to chalcogen which is bonded directly to phosphorus. [figure]

One benzene ring bonded directly to chalcogen:
This subclass is indented under subclass 144. Subject matter wherein the organo-phosphorus compound has one benzene ring attached directly to a chalcogen which is directly bonded to a phosphorus atom.

Diester:
This subclass is indented under subclass 143. Subject matter wherein the organo-phosphorus compound has the formula, illustrated below, wherein R is an organic radical and X is chalcogen. [figure]

Azoxy DOAI:
This subclass is indented under subclass 1. Subject matter wherein the active DOAI contains the azoxy group, i.e., -N(O)=N-, wherein each nitrogen is bonded directly to carbon.
(1) Note. Subject matter containing a -N=N- groups as part of a ring is classified in subclass 183.
(2) Note. The azoxy group may also be represented as shown below. [figure]

Acyclic nitrogen double bonded to acyclic nitrogen, acyclic nitrogen triple bonded to acyclic nitrogen or azide DOAI:
This subclass is indented under subclass 1. Subject matter wherein the active DOAI contains an acyclic nitrogen which is double or triple bonded to another acyclic nitrogen, i.e., -N=N- or --ANION, as illustrated below, (diazonium) or azide, etc. [figure] [caption]e.g., [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:
183 for a -N=N- group as part of a hetero ring.

Acyclic C-N=N-N containing:
This subclass is indented under subclass 150. Subject matter wherein the active ingredient contains the C-N=N-N grouping e.g., [figure] [caption], etc.
(1) Note. Subject matter which contains -N=N-N- as part of a ring is classified in subclass 183.

3,10-dihydroxy-2-naphthacene carboxamide or derivative (e.g., tetracycline, etc.) DOAI:
This subclass is indented under subclass 1. Subject matter which contains an active DOAI which has the 3,10 dihydroxy-2-naphthacenecarboxamide nucleus, e.g., (tetracycline), [figure] [caption], etc.

With stabilizer or preservative:
This subclass is indented under subclass 152. Subject matter wherein an additional agent is present which is disclosedas a
stabilizer or preservative for the 3,10-dihydroxy-2-naphthacenecarboxamide compound.

With an additional active ingredient (excludes reaction product or complex):
This subclass is indented under subclass 152. Subject matter which contain a compound and an additional active ingredient.
(1) Note. Reaction products, complexes and mixtures comprising two or moreactive compounds which havethe 3,10-dihydroxy-2-naphthacenecarboxamide nucleus are included herein.

Para-N-benzene - sulfoxy-N containing DOAI, and said benzene ring is not part of a polycyclo ring system:
This subclass is indented under subclass 1. Subject matter which contains a DOAI which has the structural group, as illustrated below and no ring of any type is fused onto the benzene nucleus, e.g., sulfanilamide, p-nitrobenzenesulfonylhydrazone, etc. [figure] [caption]Or [figure]

Hetero ring containing:
This subclass is indented under subclass 155. Subject matter wherein the active ingredient having at least one group, shown in the first illustration below, also contains a heterocyclic group, e.g., sulfapyridine, shown in the second illustration, below. [figure] [figure] [caption], etc.

The hetero ring is six-membered and includes at least two nitrogens and no other hetero atoms:
This subclass is indented under subclass 156. Subject matter wherein the heterocyclic ring has six members and includes at least two nitrogen and no other hetero atoms.

The hetero ring is five-membered:
This subclass is indented under subclass 156. Subject matter wherein the heterocyclic group has five members, e.g., sulfamoxole, [figure] [caption], etc.

Ortho-hydroxybenzoic acid (i.e., salicylic acid) or derivative DOAI:
This subclass is indented under subclass 1. Subject matter wherein the organic active ingredient contains salicylic acid as shown in the first illustration, below, or a derivative thereof which contains the moiety, as shown in the second illustration, below, said derivative being other than another ring fused onto the benzoic acid moiety or the ortho-hydroxybenzoic acid salts of a bioactive organic compound. [figure] [figure]
(1) Note. This subclass includes ring structures derived from the carboxy and hydroxyl moieties.
(2) Note. The ortho-hydroxybenzoic acid salts of organic compounds are excluded herefrom and are classified in the appropriate subclasses below based on the bioactive compound.

With additional ortho-hydroxybenzoic acid compound:
This subclass is indented under subclass 159. Subject matter wherein two or more bioactive organic compounds each having the moiety are present. [figure]
(1) Note. The combination of salicylic acid and a salt thereof is in this subclass.

With heterocyclic compound:
This subclass is indented under subclass 159. Subject matter wherein a heterocyclic compound is present in addition to the salicylic acid compound.

With organic nitrogen containing compound:
This subclass is indented under subclass 159. Subject matter wherein an organic nitrogen compound is present in addition to the salicylic acid compound.

With carboxylic acid, ester or metal salt thereof:
This subclass is indented under subclass 159. Subject matter wherein a carboxylic acid, ester or metal salt thereof is present in addition to the salicylic acid compound.

With organic oxygen containing compound:
This subclass is indented under subclass 159. Subject matter wherein an organic oxygen compound is present in addition to the salicylic acid compound.

Aspirin, per se, (i.e., 2-(acetyloxy) benzoic acid):
This subclass is indented under subclass 159. Subject matter wherein the organic active ingredient is 2-(acetyloxy benzoic acid): [figure]

Nitrogen containing (e.g., anilides, etc.):
This subclass is indented under subclass 159. Subject matter wherein the salicylic acid compound contains nitrogen, e.g., anilides, etc.

9,10-seco cyclopentanohydrophenanthrene ring system (e.g., vitamin D, etc.) DOAI:
Subject matter under subclass wherein the organic active
ingredient contains a 9, 10-seco-cyclopentanohydrophenanthrene nucleus, i.e., [figure]
(1) Note. Such terms as "activated ergosterol", vitamin D, ergocalciferol, cholecalciferol and antirachitic vitamin will suffice for classification of an active ingredient in this subclass.

With a vitamin type active ingredient:
This subclass is indented under subclass 167. Subject matter wherein an additional vitamin type active compound is present in addition to the 9, 10 seco-cyclopentanohydrophenanthrene compound, e.g., vitamin A, etc.

Cyclopentanohydrophenanthrene ring system DOAI:
This subclass is indented under subclass 1. Subject matter wherein the organic active ingredient has the cyclopentanohydrophenanthrene nucleus, illustrated below, and may contain double bond between its members. [figure]
(1) Note. Included herein is lanolin as the active ingredient.

Plural compounds containing cyclopentanohydrophenanthrene ring systems:
This subclass is indented under subclass 169. Subject matter wherein two or more bioactive compounds are present each of which contains the cyclopentanohydrophenanthrene ring system.

With additional active ingredient:
This subclass is indented under subclass 169. Subject matter wherein an organic bioactive ingredient is present in addition to the cyclopentanohydrophenanthrene ring containing compound.

Hetero ring containing:
This subclass is indented under subclass 169. Subject matter wherein the cyclopentanohydrophenanthrene ring containing compound contains a heterocyclic ring. Included herein are: [figure] [caption]and [figure] [caption], etc.

Spiro ring system:
This subclass is indented under subclass 172. Subject matter wherein a spiro ring is attached directly or indirectly to a carbon of the cyclopentanohydrophenanthrene nucleus.

-O-C-O- is part of a hetero ring (e.g., acetonide, etc.):
This subclass is indented under subclass 172. Subject matter wherein an -O-C-O- containing hetero ring is attached or fused to the cyclopentanohydrophenanthrene nucleus.

-C(=O)-O- is part of a hetero ring (e.g., lactone, etc.):
This subclass is indented under subclass 172. Subject matter wherein -O-C(=O)- is part of the hetero ring attached or fused to the cyclopentanohydrophenanthrene nucleus.

Nitrogen containing hetero ring:
This subclass is indented under subclass 172. Subject matter wherein the hetero ring contains at least one nitrogen atom.

Oxygen double bonded to a ring carbon or the cyclopentanohydrophenanthrene ring system:
This subclass is indented under subclass 169. Subject matter wherein a nuclear carbon of the cyclopentanohydrophenanthrene nucleus is bonded to an oxygen atom through a double bond (C=O).

Oxygen single bonded to a ring carbon of the cyclopentanohydrophenanthrene ring system:
This subclass is indented under subclass 177. Subject matter wherein one nuclear carbon of the cyclopentanohydrophenanthrene nucleus is bonded to an oxygen through a double bond and wherein another nuclear carbon atom of said cyclopentanohydrophenanthrene is bonded to at least one other oxygen through a single bond as, e.g., ether, hydroxy or alcoholate, etc.

Modified C-ring (except methyl in 13-position) (e.g., double bond containing substituted, etc.):
This subclass is indented under subclass 178. Subject matter wherein the C-ring of the cyclopentanohydrophenanthrene ring system contains a double bond or is substituted, other than -CH[subscrpt]3[end subscrpt] in 13-position, i.e., 18-methyl.
(1) Note. For the purpose of this classification, the C-ring is defined as including positions 8, 9, 11, 12, 13, and 14.
(2) Note. See subclass 169 for the numbering system of a cyclopentanohydrophenanthrene nucleus.
(3) Note. This subclass contains for example: [figure] [figure] [caption], etc.

9-position substituted:
This subclass is indented under subclass 179. Subject matter wherein the cyclopentanohydrophenanthrene is substituted.

21-position substituted:
This subclass is indented under subclass 178. Subject matter wherein the carbon in the 21 position is directly bonded to an atom other than carbon or hydrogen.
(1) Note. This subclass contains, for example: [figure] [figure] [caption], etc.

Oxygen singly bonded to a ring carbon of the cyclopentanohydrophenanthrene ring system:
This subclass is indented under subclass 169. Subject matter wherein a nuclear carbon of the cyclopentanohydrophenanthrene nucleus is bonded to an oxygen through a single bond [figure] [caption]Cholestrol.

Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O, S, Se, or Te) or nitrogen as the only ring hetero atoms DOAI:
This subclass is indented under subclass 1. Subject matter which includes a compound containing a ring composed of carbon and at least one element from the group consisting of nitrogen, sulfur, selenium, tellurium and oxygen as DOAI.
(1) Note. Excluded herefrom are those carbon compounds wherein the only heterocyclic nucleus present is produced by salt formation between amino and acid groups, e.g., betaines, which are placed with the corresponding open chain compounds, particularly subclass 556.

Heavy metal-containing (including salts):
This subclass is indented under subclass 183. Subject matter in which the heterocyclic compound includes a heavy metal.
(1) Note. This subclass includes salts.

Polycyclo ring system:
This subclass is indented under subclass 184. Subject matter
wherein the heterocyclic compound which includes a heavy metal is a part of a fused ring or bridged ring system.

Bicyclo ring system:
This subclass is indented under subclass 185. Subject matter wherein the polycyclo system comprises only two rings.

Quinolines or isoquinolines (including hydrogenated):
This subclass is indented under subclass 186. Subject matter in which the bicyclo forms a quinoline or isoquinoline ring or hydrogenated forms thereof, e.g., [figure] [figure] [caption], etc.

Hetero ring is six-membered consisting of one nitrogen and five carbons:
This subclass is indented under subclass 184. Subject matter wherein the heterocyclic ring consists of five carbons and one nitrogen.

Tin:
This subclass is indented under subclass 184. Subject matter wherein the heavy metal is tin.

Mercury:
This subclass is indented under subclass 184. Subject matter wherein the heavy metal is mercury.

Aluminum (including salts):
This subclass is indented under subclass 184. Subject matter in which the heterocyclic compound includes aluminum.
(1) Note. This subclass includes salts.

1-thia-4-aza-bicyclo (3.2.0.) heptane ring containing (including dehydrogenated) e.g., penicillins, etc.):
This subclass is indented under subclass 183. Subject matter wherein the heterocyclic compound contains a 1-thia- 4- aza-bicyclo (3.2.0) heptane ring system having the following structure, and may contain a double bond between ring members, e.g., penicillins, etc. [figure]
(1) Note. The Ring Index uses a different system for numbering the ring members. However, in the indents hereunder which refer to positions, the numbers shown in the definition are employed.
(2) Note. Patents reciting broadly "penicillins," "penicillin type," or "penicillin drugs" are placed herein.

SEE OR SEARCH CLASS:
435, Chemistry: Molecular Biology and Microbiology, subclass 43 for processes of producing penicillin by microbial fermentation.
540, Organic Compounds, 304 for a penicillin compound, per se.

Spiro or addition polycyclo ring system:
This subclass is indented under subclass 192. Subject matter which contains a spiro ring system, or an additional polycyclo ring system.

6,6-di-substituted:
This subclass is indented under subclass 192. Subject matter wherein the bicyclo heptane ring system contains two substituents other than hydrogen in 6-position.

3-position substituent contains -COOC- group:
This subclass is indented under subclass 192. Subject matter wherein a substituent in 3-position of the bicyclo heptane ring system contains a -COOC- group, e.g., ester, etc.

6-position substituent contains hetero ring:
This subclass is indented under subclass 192. Subject matter wherein a substituent in 6-position of the bicyclo heptane ring system contains a hetero ring.

6-position substituent contains carbocyclic ring:
This subclass is indented under subclass 192. Subject matter wherein a substituent in 6-position of the bicyclo heptane ring system contains a carbocyclic ring.

Ampicillin, per se, or salt thereof:
This subclass is indented under subclass 197. Subject matter wherein the heterocyclic compound is ampicillin having the following structure, illustrated below, or salt thereof. [figure]

Penicillin G, per se, or salt thereof (e.g., procaine penicillin G, etc.):
This subclass is indented under subclass 197. Subject matter wherein the heterocyclic compound is penicillin G or salt thereof, e.g., [figure] [caption], etc.

1-thia-5-aza-bicyclo (4.2.0) octane ring containing (including dehydrogenated) (e.g., cephalosporins, etc.):
This subclass is indented under subclass 183. Subject matter wherein the heterocyclic compound contains a 1-thia-5-aza-bicyclo (4.2.0.) octane ring system having the following structure, illustrated below, and may contain double bond between ring members, e.g., cephalosporin, etc. [figure]
(1) Note. The Ring Index uses a different system for numbering the ring members. However, in the indents hereunder which refer to positions, the numbers shown in the definition are employed.

7,7-di-substituted:
This subclass is indented under subclass 200. Subject matter wherein the bicyclo octane ring system contains two substituents other than hydrogen in 7-position.

Addition hetero ring:
This subclass is indented under subclass 200. Subject matter wherein the bicyclo octane ring system contains an additional hetero ring.

3-Position substituent contains pyridine ring:
This subclass is indented under subclass 202. Subject matter wherein a substituent in 3-position of the bicyclo octane ring system contains a pyridine ring.

3-position substituent contains sulfur:
This subclass is indented under subclass 202. Subject matter wherein a substituent in 3-position of the bicyclo octane ring system contains sulfur, e.g., [figure] [caption]etc.

The additional hetero ring is part of a polycyclo ring system:
This subclass is indented under subclass 204. Subject matter wherein the additional hetero ring is part of a polycyclo ring system.

7-position substituent contains hetero ring:
This subclass is indented under subclass 204. Subject matter wherein a substituent in 7-position contains a hetero ring.

Alkyl, hydroxyalkyl, alkoxyalkyl, or alkanoloxyalkyl bonded directly to 3-position:
This subclass is indented under subclass 202. Subject matter wherein alkyl, alkyl-OH, alkyl-O-alkyl, or alkyl-C(=O)-O-alkyl is bonded directly to 3-position of the bicyclo octane ring system.

Sulfur containing substituent:
This subclass is indented under subclass 200. Subject matter wherein the bicyclo octane ring system contains sulfur.

Alkyl, hydroxyalkyl, alkoxyalkyl, or alkanoloxyalkyl bonded directly to 3-position:
This subclass is indented under subclass 200. Subject matter wherein alkyl, alkyl-OH, alkyl-O-alkyl, alkyl-C(=O)-O-alkyl is bonded directly to 3-position of the bicyclo octane ring system.

Hetero ring is four-membered and includes at least one ring nitrogen:
This subclass is indented under subclass 183. Subject
matter which contains a heterocyclic ring consisting of four atoms, at least one of which is nitrogen.
(1) Note. The heterocyclic ring may include other hetero atoms of the group set forth in the definition of subclass 183 and the relative positions of the hetero atoms may vary.

SEE OR SEARCH CLASS:
540, Chemistry, Carbon Compounds, Part of the Class 532-570 Series, subclasses 200-364 for a compound which includes a four-membered lactam ring.
548, Carbon Compounds, Part of the 532-570 Series, subclasses 950-953, for a compound which includes a non-lactam four-membered hetero ring containing nitrogen.

Chalcogen double bonded directly to a ring carbon of the four-membered hetero ring which is adjacent to the ring nitrogen:
This subclass is indented under subclass 210.01. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is double bonded directly to one of the carbons of the four-membered hetero ring which is adjacent to the ring nitrogen.

Polycyclo ring system having the four-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 210.02. Subject matter wherein the four-membered hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Bicyclo ring system having the four-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 210.03. Subject matter in which the polycyclo ring system consists of exactly two rings.

Plural ring hetero atoms in the bicyclo ring system:
This subclass is indented under subclass 210.04. Subject matter wherein the bicyclo ring system contains an additional hetero atom (i.e. nitrogen, oxygen, sulfur, selenium, or tellurium).
(1) Note. An example of an active ingredient provided for herein is, [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:
192 for when the additional hetero atom is sulfur, and the bicyclo ring system is 1-thia-4-aza-bicyclo (3.2.0) heptane.
200 for when the hetero atom is sulfur, and the bicyclo ring system is 1-thia-5-aza- bicyclo (4.2.0) octane.

Ring oxygen in the bicyclo ring system:
This subclass is indented under subclass 210.05. Subject matter wherein the additional hetero atom is oxygen

The other cyclo of the bicyclo ring system is six-membered:
This subclass is indented under subclass 210.06. Subject matter wherein a six membered ring is the other cyclo of the bicyclo ring system.

1-Oxa-5-aza-bicyclo(4.2.0)octanes ( including unsaturated ):
This subclass is indented under subclass 210.07. Subject matter in which the bicyclo ring system has the following basic structure, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and the structure may contain double bonds between ring members: [figure]

The other cyclo of the bicyclo ring system is five-membered:
This subclass is indented under subclass 210.04. Subject matter wherein the other cyclo in the bicyclo ring system consists of five members.

Sulfur bonded directly to the five-membered cyclo of the bicyclo ring system (e.g., thienamycin, etc.):
This subclass is indented under subclass 210.09. Subject matter wherein the five-membered cyclo of of the bicyclo ring system is bonded directly to sulfur.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Additional hetero ring attached directly to the sulfur by nonionic bonding:
This subclass is indented under subclass 210.10. Subject matter wherein the sulfur is attached directly by nonionic bonding to an additional hetero ring (i.e. a ring consisting of carbon and at least one ring member selected from nitrogen and chalcogen).

The additional hetero ring contains ring nitrogen:
This subclass is indented under subclass 210.11. Subject matter wherein nitrogen is a ring member of the additional hetero ring.

Having C(=X)-, wherein X is chalcogen, bonded directly to the additional hetero ring:
This subclass is indented under subclass 210.12. Subject matter wherein the additional hetero ring is bonded directly to a C(=X)- group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium or tellurium).

Polycyclo ring system bonded to the five-membered cyclo of the bicyclo ring system:
This subclass is indented under subclass 210.09. Subject matter wherein the five-membered cyclo of the bicyclo ring system is bonded directly to a polycyclo ring system
(1) Note. The polycyclo ring system may include a nitrogen- or chalcogen-containing hetero ring.

Chalcogen bonded directly to the ring nitrogen of the four-membered ring by nonionic bonding
This subclass is indented under subclass 210.02. Subject matter wherein a chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) is bonded directly to the ring nitrogen of the four-membered ring by nonionic bonding.

Polycyclo ring system having the four- membered hetero ring as one of the cyclos:
This subclass is indented under subclass 210.01. Subject matter wherein the four-membered hetero ring is one of the cyclos in a polycyclo ring system.

Having -C(=X)-, wherein X is chalcogen, bonded directly to the four membered hetero ring:
This subclass is indented under subclass 210.01. Subject matter wherein a -C(=X)- group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium or tellurium), is attached directly to the four membered hetero ring.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Additional hetero ring attached directly or indirectly to the four-membered heteroby nonionic bonding:
This subclass is indented under subclass 210.17. Subject matter wherein the four-membered hetero ring is attached directly or indirectly by nonionic bonding to an additional hetero ring.

Additional hetero ring attached directly or indirectly to the four-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 210.01. Subject matter wherein the four-membered hetero ring is attached directly or indirectly by nonionic bonding.to an additional hetero ring.

The additional hetero ring contains ring nitrogen:
This subclass is indented under subclass 210.19. Subject matter wherein the additional hetero ring contains at least one nitrogen as a ring hetero atom.

Polycyclo ring system having the additional hetero ring as one of the cyclos:
This subclass is indented under subclass 210.20. Subject matter wherein the additional hetero ring is part of a polycyclo ring system.

Hetero ring contains seven members including nitrogen, carbon, and chalcogen:
This subclass is indented under subclass 183. Subject matter which contains a hetero ring having exactly seven members consisting of carbon, nitrogen and chalcogen (i.e., oxygen, sulfur, selenium, or tellurium as its only ring members)..

SEE OR SEARCH CLASS:
540, Chemistry, Carbon Compounds, Part of the 532-570 Series, subclasses 488-491 for seven-membered lactams containing a chalcogen ring atom in the lactam ring, subclasses 544 through 552 for non-lactam seven-membered hetero ring compounds which include nitrogen and chalcogen as ring atoms of the seven-membered hereto ring.

Monocyclic cyclopentyl ring bonded directly to the seven-membered hetero ring (e.g., prostaglandins, etc.):
This subclass is indented under subclass 211.01. Subject matter wherein the seven-membered hetero ring is bonded directly to a monocyclic cyclopentyl ring

Chalcogen double bonded directly to a ring carbon which is adjacent to the ring nitrogen:
This subclass is indented under subclass 211.01. Subject matter wherein a chalcogen (i. oxygen, sulfur, selenium, or tellurium) is double bonded directly to a ring carbon which is adjacent to the ring nitrogen of the seven-membered hetero ring.

Polycyclo ring system which contains the seven-membered hetero ring as of the cyclos:
This subclass is indented under subclass 211.03. Subject matter wherein the seven-membered hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Bicyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 211.04. Subject
matter wherein the polycyclo ring system consists of exactly two rings.

Ring chalcogen and ring nitrogen are in the 1,5 positions of the seven-membered hetero ring
This subclass is indented under subclass 211.05. Subject matter wherein chalcogen and nitrogen are in the 1- and 5-positions, respectively, of the seven-membered hetero ring.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Nitrogen attached directly or indirectly to the ring nitrogen of the seven- membered hetero ring by acyclc nonionic bonding ( e.g. Diltiazem, etc.):
This subclass is indented under subclass 211.06. Subject matter wherein the ring nitrogen of the seven-membered hetero ring is attached directly or indirectly to nitrogen by nonionic bonding.
(1) Note. Diltiazem is 2-(p-methoxyphenyl)-3-acetoxy- 5-N,N-dimethylaminoethyl-1,5-benzothiazepin-4-one, of the following formula: [figure]

Plural ring nitrogens in the seven-membered hetero ring:
This subclass is indented under subclass 211.01. Subject matter wherein the seven-membered hetero ring contains at least two ring nitrogens.

SEE OR SEARCH CLASS:
540, Chemistry, Carbon Compounds, Part of the 532-570 Series, subclass 545, for compounds which contain chalcogen and at least two ring nitrogens in a seven-membered hetero ring.

Polycyclo ring system which contains the seven-membered
hetero ring as one of the cyclos:
This subclass is indented under subclass 211.01. Subject matter wherein the seven-membered hetero ring is one of the cyclos of a polycyclo ring system.

Three ring hetero atoms in the polycyclo ring system:
This subclass is indented under subclass 211.09. Subject matter wherein the polycyclo ring system contains at least three ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Tricyclo ring system having the seven-membered hetero ring as one of the cyclos:
Subject matter under 211.09 wherein the polycyclo ring system consists of exactly three rings.

Ring nitrogen is shared by plural cyclos of the tricyclo ring system:
This subclass is indented under subclass 211.11. Subject matter wherein plural cyclos of the tricyclo ring system share ring nitrogen.

Nitrogen bonded directly to ring carbon of the seven-membered hetero ring:
This subclass is indented under subclass 211.11. Subject matter wherein a ring carbon of the seven-membered hetero ring is bonded directly to nitrogen.
(1) Note. Examples of active ingredients provided for herein are, [figure]

Having -C(=X)-, wherein X is chalcogen, bonded directly to the seven-membered hetero ring :
This subclass is indented under subclass 211.11. Subject matter wherein the seven-membered hetero ring is bonded to a C(=X)- group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium or tellurium).

Additional nitrogen containing hetero ring attached directly or indirectly to the seven-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 211.01. Subject matter wherein the seven-membered hetero ring is attached directly or indirectly by nonionic bonding to an additional nitrogen-containing hetero ring.

Hetero ring is seven-membered consisting of one nitrogen and six carbons:
This subclass is indented under subclass 183. Subject matter wherein the hetero ring has seven members and consists of one ring nitrogen and six carbon atoms.

SEE OR SEARCH CLASS:
540, Chemistry, Carbon Compounds, Part of the 530-570 Series, subclasses 519-540 for a lactam ring compound wherein the ring consists of nitrogen and six carbon atoms, and subclasses 576-612 for a non-lactam compound having a hetero ring consisting one nitrogen and six carbons.

Spiro:
Subject matter under 212.01 wherein a ring is spiro fused directly or indirectly to the seven-membered hetero ring.
(1) Note. An example of an active ingredient provided herein is: [figure]

Chalcogen double bonded directly to a ring carbon of the seven-membered hetero ring which is adjacent to the ring nitrogen:
This subclass is indented under subclass 212.01. Subject matter wherein chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) is double bonded directly to a ring carbon of the seven-membered hetero ring which is adjacent to the ring nitrogen.

Polycyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 212.03. Subject matter wherein the seven-membered hetero ring is one of the cyclos of a polycyclo ring system.

Plural cyclos of the polycyclo ring system share ring nitrogen of the seven-membered hetero ring:
This subclass is indented under subclass 212.04. Subject matter wherein the ring nitrogen of the seven membered hetero ring is shared by plural cyclos of the polycyclo ring system.

Bicyclo ring system having the seven-membered hetero ring as one of the cyclos :
This subclass is indented under subclass 212.04. Subject matter wherein the polycyclo ring system consists of exactly two rings.

Additional hetero ring attached directly or indirectly by nonionic bonding to the seven-membered hetero ring:
This subclass is indented under subclass 212.03. Subject matter wherein the seven-membered hetero ring is attached directly or indirectly to an additional hetero ring by nonionic bonding.
(1) Note. An example of an active ingredient provided for
herein is, [figure]

Polycyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 212.01. Subject matter wherein the seven-membered hetero ring is one of the cyclos of a polycyclo ring.

Ring nitrogen of the seven-membered hetero ring is shared by an additional cyclo of the polycyclo ring system:
This subclass is indented under subclass 213.01. Subject matter wherein the ring nitrogen of the seven-membered hetero ring is also a member of an additional cyclo of the polycyclo ring system.

Plural ring nitrogens in the polycyclo ring system
This subclass is indented under subclass 214.01. Subject matter wherein the polycyclo ring system has two or more ring nitrogens.

Two of the cyclos share at least three ring members (i.e. bridged):
This subclass is indented under subclass 214.01. Subject matter wherein two cyclos of the polycyclo ring system share at least three ring members.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Additional hetero atom in the polycyclo ring system:
This subclass is indented under subclass 213.01. Subject
matter wherein the polycyclo ring system contains at least one ring hetero atom in addition to the ring nitrogen of the seven-membered hetero ring.

Two of the cyclos share at least three ring carbons (i.e., bridged):
This subclass is indented under subclass 213.01. Subject matter wherein two cyclos of the polycyclo ring system share at least three ring carbons.
(1) Note. An example of a compound provided for herein is: [figure] [caption] etc.

Tricyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 213.01. Subject matter wherein the polycyclo ring system consists of exactly three rings.

3-Benzazepines (including hydrogenated):
This subclass is indented under subclass 213.01. Subject matter wherein the polycyclo ring system has the following structure which may contain double bonds between its members: [figure]

Benzene ring bonded directly to ring carbon of the seven-membered hetero ring:
Subject matter under 217.01 wherein a ring carbon of the seven-membered hetero ring is bonded directly to an optionally substituted benzene ring.

Additional hetero ring attached directly or indirectly to the seven-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 212.01. Subject matter wherein the seven-membered hetero ring is attached directly or indirectly by nonionic bonding.to an additional hetero ring

The additional hetero ring is six-membered and contains nitrogen:
This subclass is indented under subclass 217.03. Subject matter wherein nitrogen is a ring member of the additional hetero ring, which is six-membered.

Plural ring hetero atoms in the additional hetero ring:
Subject matter under 217.04 wherein the additional hetero ring has at least two ring hetero atoms

The additional hetero ring is a 1,3 diazine (including hydrogenated):
This subclass is indented under subclass 217.05. Subject matter wherein the additional hetero ring has the following structure [figure]
(1) Note. An example of active ingredients provided for herein is, [figure]

Polycyclo ring system having the additional six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 217.04. Subject matter wherein the additional six-membered hetero ring is one of the cyclos of a polycyclo ring system.

The additional hetero ring is five-membered and contains nitrogen:
This subclass is indented under subclass 217.03. Subject matter wherein nitrogen is a ring member of the additional hetero ring, which is five-membered.

Plural hetero atoms in the additional hetero ring:
This subclass is indented under subclass 217.08. Subject matter wherein the additional hetero ring contains at least two ring hetero atoms, e.g. diazoles, etc.
(1) Note. An example of an active ingredient provided for herein is, [figure]

Chalcogen is one of the ring hetero atoms:
Subject matter under 217.09 wherein one of the hetero atoms in the additional hetero ring is a chalcogen (i.e. oxygen, sulfur, selenium, or tellurium).

Nitrogen or -C(=X)-, wherein X is chalcogen, bonded directly to the seven- membered hetero ring:
This subclass is indented under subclass 212.01. Subject matter wherein the seven-membered hetero ring is bonded directly to .nitrogen or to a -C(=X)- group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium or tellurium).

Nitrogen or C(=X), wherein X is chalcogen, attached indirectly to the seven-membered hetero ring by acyclic nonionic bonding:
This subclass is indented under subclass 212.01. Subject matter wherein the seven-membered hetero ring is attached indirectly by acyclic nonionic bonding to nitrogen or to a C(=X) group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium or tellurium),

Hetero ring is seven-membered consisting of two nitrogen and five carbon atoms:
This subclass is indented under subclass 183. Subject matter which contains a seven-membered heterocyclic ring consisting of two nitrogen and five carbon atoms.

Polycyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 218. Subject matter wherein the seven-membered hetero ring is one of the cyclos of a polycyclo ring system.

Tricyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 219. Subject matter wherein the polycyclo ring system consists of exactly three rings.

Bicyclo ring system having the seven-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 219. Subject matter wherein the polycyclo ring system consists of exactly two rings.

Hetero ring is six-membered and includes at least nitrogen and sulfur as ring members:
This subclass is indented under subclass 183. Subject matter in which the hetero ring contains at least nitrogen and sulfur as ring hetero atoms and is six-membered.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Three or more ring hetero atoms in the six-membered hetero ring:
This subclass is indented under subclass 222.2. Subject matter in which the six-membered hetero ring contains at least three ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Polycyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 222.5. Subject matter in which the six-membered hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

1,2,4,-benzothiadiazine-1, 1-dioxides (including hydrogenated):
This subclass is indented under subclass 222.8. Subject matter in which the polycyclo ring system has the following basic structure, which may contain double bonds between ring members: [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

With additional active ingredient:
This subclass is indented under subclass 223.2. Subject matter in which, in addition to the 1,2, 4-benzothiadiazine-1, 1-dioxide compound, an additional active ingredient is present.
(1) Note. This subclass provides for subject matter wherein plural nonidentical 1,2, 4-benzothiadiazine-1, 1-dioxide compounds are each present as active ingredients.

1,3,5-thiadiazines:
This subclass is indented under subclass 222.5. Subject matter in which the six-membered hetero ring has the following basic structure, which may contain double bonds between ring members: [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

Polycyclo ring system having the six-membered hetero ring as one of the cyclos (e.g., 1,3- and 1,4-benzothiazines, etc.):
This subclass is indented under subclass 222.22. Subject matter in which the six-membered hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

At least three cyclos in the polycyclo ring system:
This subclass is indented under subclass 224.2. Subject matter in which the polycyclo ring system contains three or more cyclos.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Phenothiazines (including hydrogenated):
This subclass is indented under subclass 224.5. Subject matter in which the polycyclo ring system has the following basic structure, which may contain double bonds between ring members: [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

Hetero ring attached directly or indirectly to the phenothiazine ring nitrogen by acyclic nonionic bonding:
This subclass is indented under subclass 224.8. Subject matter in which the phenothiazine ring nitrogen is attached directly or indirectly to a hetero ring by acyclic nonionic bonding.
(1) Note. An example of a active ingredient provided for herein is: [figure]

The hetero ring is monocyclic piperidine:
This subclass is indented under subclass 225.2. Subject matter in which monocyclic piperidine is the hetero ring.
(1) Note. An example of an active ingredient provided for herein is: [figure]

The hetero ring contains plural ring nitrogens:
This subclass is indented under subclass 225.2. Subject matter in which the hetero ring contains more than one ring nitrogen.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Chalcogen or nitrogen attached indirectly to the phenothiazine ring nitrogen by acyclic nonionic bonding:
This subclass is indented under subclass 224.8. Subject matter in which the phenothiazine ring nitrogen is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or to nitrogen by acyclic nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

One of the cyclos is a 1, 2-thiazine (e.g., 1,
2-benzothiazines, etc.):
This subclass is indented under subclass 224.2. Subject matter in which a 1, 2-thiazines is one of the cyclos of the polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

1, 3-thiazines:
This subclass is indented under subclass 222.2. Subject matter in which the hetero ring has the following basic structure, which may contain double bonds between ring members: [figure]
(1) Note. An example of an ingredient provided for herein is: [figure]

Chalcogen or nitrogen bonded directly to ring carbon of the six-membered hetero ring:
This subclass is indented under subclass 226.8. Subject matter in which a ring carbon if the 1, 3-thiazine ring is bonded directly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or to nitrogen.
(1) Note. An example of an active ingredient provided for herein is: [figure]

1, 4-thiazines:
This subclass is indented under subclass 222.2. Subject matter in which the hetero ring has the following basic structure, which may contain double bonds between ring members: [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

Additional hetero ring attached directly or indirectly to the
1, 4-thiazine by nonionic bonding:
This subclass is indented under subclass 227.5. Subject matter in which the 1, 4-thiazines is attached directly or indirectly by nonionic bonding to an additional hetero ring.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Polycyclo ring system having the additional hetero ring as one if the cyclos:
This subclass is indented under subclass 227.8. Subject matter in which the additional hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Three or more ring hetero atoms in the polycyclo ring system:
This subclass is indented under subclass 228.2. Subject matter in which the polycyclo ring system contains at least three ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Hetero ring is six-membered and includes at least nitrogen and oxygen as ring hetero atoms (e.g., monocyclic 1, 2- and 1, 3-oxazines, etc.):
This subclass is indented under subclass 183. Subject matter in which the hetero ring contains at least nitrogen and oxygen as ring hetero atoms and is six-membered.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Three or more ring hetero atoms in the six-membered hetero
ring:
This subclass is indented under subclass 228.8. Subject matter in which the six-membered hetero ring contains at least three ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Polycyclo ring system having the six-membered hetero ring as one of the cyclos (e.g., maytansinoids, etc.):
This subclass is indented under subclass 228.8. Subject matter in which the six-membered hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Tricyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 229.5. Subject matter in which the six-membered hetero ring is one of the cyclos of a tricyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Ring nitrogen shared by two of the cyclos:
This subclass is indented under subclass 229.8. Subject matter in which the tricyclo ring system contains a ring nitrogen which is shared by two of the cyclos.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Bicyclo ring system having the six-membered hetero ring as one of the cyclos (e.g., 1 4-benzoxazines, etc.):
This subclass is indented under subclass 229.5. Subject matter in which the six-membered hetero ring is one of the cyclos of a bicyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Chalcogen bonded directly to ring carbon of 1, 4-oxazine ring:
This subclass is indented under subclass 228.8. Subject matter in which the six-membered hetero ring has the following basic structure which may contain double bonds between ring members, as illustrated below, and in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly to a ring carbon of the six-membered hetero ring. [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

Morpholines (i.e., fully hydrogenated 1, 4-oxazines):
This subclass is indented under subclass 228.8. Subject matter in which the six-membered hetero ring has the following basic structure: [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

Additional hetero ring attached directly or indirectly to the morpholine ring by nonionic bonding:
This subclass is indented under subclass 231.2. Subject matter in which the morpholine ring is attached to an additional hetero ring by direct or indirect nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Plural morpholine rings attached directly or indirectly to each other by nonionic bonding:
This subclass is indented under subclass 231.5. Subject matter in which the compound contains two or more morpholine rings attached to each other by direct or indirect nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Additional hetero ring attached directly or indirectly to the morpholines by nonionic bonding:
This subclass is indented under subclass 231.8. Subject matter in which the morpholines are attached to an additional hetero ring by direct or indirect nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Polycyclo ring system having the additional hetero ring as one of the cyclos:
This subclass is indented under subclass 232.2. Subject matter in which the additional hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Polycyclo ring system having the additional hetero ring as one of the cyclos:
This subclass is indented under subclass 231.5. Subject matter in which the additional hetero ring is one of the cyclos of a polycyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Ring nitrogen shared by two of the cyclos:
This subclass is indented under subclass 232.8. Subject matter in which two of the cyclos in the polycyclo ring system share a ring nitrogen.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Bicyclo ring system having the additional hetero ring as one of the cyclos:
This subclass is indented under subclass 232.8. Subject matter in which the additional hetero ring is one of the cyclos of a bicyclo ring system.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Plural ring hetero atoms in the bicyclo ring system:
This subclass is indented under subclass 233.5. Subject matter in which the bicyclo ring system contains two or more ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Three or more ring hetero atoms in the bicyclo ring system:
This subclass is indented under subclass 233.8. Subject matter in which the bicyclo ring system contains at least three ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Plural ring nitrogens in the bicyclo ring system:
This subclass is indented under subclass 233.8. Subject matter in which the bicyclo ring system contains two ring
nitrogens.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Quinoxalines (including hydrogenated):
This subclass is indented under subclass 234.5. Subject matter in which the bicyclo ring system has the following basic structure which may contain double bonds between ring members: [figure]
(1) Note. An example of an active ingredient provided for herein is: [figure]

Ring nitrogen in the bicyclo ring system:
This subclass is indented under subclass 234.5. Subject matter in which the bicyclo ring system contains a ring nitrogen.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Ring nitrogen in the additional hetero ring:
This subclass is indented under subclass 231.5. Subject matter in which the additional hetero ring contains a ring nitrogen.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Plural ring nitrogens in the additional hetero ring (e.g., imidazole, pyrazine, etc.):
This subclass is indented under subclass 235.5. Subject matter in which the additional hetero ring contains plural ring nitrogens.
(1) Note. An example of an active ingredient provided for
herein is: [figure]

Three or more ring hetero atoms in the additional hetero ring:
This subclass is indented under subclass 235.8. Subject matter in which the additional hetero ring contains at least three ring hetero atoms.
(1) Note. An example of an active ingredient provided for herein is: [figure]

The ring nitrogens are bonded directly to each other (e.g., pyridazine, etc.):
This subclass is indented under subclass 235.8. Subject matter in immediately adjacent to each other in the ring.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Ring chalcogen in the additional hetero ring (e.g., oxazole, etc.):
This subclass is indented under subclass 235.5. Subject matter in which the additional hetero ring also contains a ring chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).
(1) Note. An example of an active ingredient provided for herein is: [figure]

The additional hetero ring is attached indirectly to the morpholine ring by an acyclic chain having a hetero atom as a chain member:
(1) Note. An example of an active ingredient provided for herein is: [figure]

Having -C(=X)-, wherein X is chalcogen, bonded directly to the morpholine ring:
This subclass is indented under subclass 231.2. Subject matter in which the morpholine ring is bonded directly to-C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).
(1) Note. An example of an active ingredient provided for herein is: [figure]

Nitrogen attached indirectly to the morpholine ring by acyclic nonionic bonding:
This subclass is indented under subclass 231.2. Subject matter in which the morpholine ring is attached indirectly to nitrogen by acyclic nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Chalcogen attached directly to the nitrogen by nonionic bonding:
This subclass is indented under subclass 237.8. Subject matter in which the nitrogen is attached directly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

The nitrogen is double or triple bonded directly to carbon:
This subclass is indented under subclass 237.8. Subject matter in which carbon is bonded directly to the nitrogen by a double or triple bond.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Chalcogen attached indirectly to the morpholine ring by acyclic nonionic bonding:
This subclass is indented under subclass 231.2. Subject matter in which the morpholine ring is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

The chalcogen is bonded directly to two carbon atoms:
This subclass is indented under subclass 238.8. Subject matter in which each of two carbon atoms is bonded directly to the chalcogen.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Carbocyclic ring attached indirectly to the morpholine ring by nonionic bonding:
This subclass is indented under subclass 231.2. Subject matter in which the morpholine ring is attached indirectly to a carbocyclic ring by nonionic bonding.
(1) Note. An example of an active ingredient provided for herein is: [figure]

Hetero ring is six-membered consisting of three nitrogens and three carbon atoms:
This subclass is indented under subclass 183. Subject matter wherein the active ingredient contains a six-membered heterocyclic nucleus consisting of three nitrogen atoms and three carbon atoms.

Asymmetrical (e.g., 1,2,4-triazine, etc.):
This subclass is indented under subclass 241. Subject matter wherein the heterocyclic ring is asymmetrical e.g., (1,2,4- triazine) [figure] [caption], etc.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 242. Subject matter wherein the triazine is a part of a fused ring or bridged ring system.

Hexamethylenetetramines:
This subclass is indented under subclass 241. Subject matter wherein the active ingredient comprises the following structure (i.e., hexamethylenetertramines). [figure]

Nitrogen bonded directly to ring carbon of the hetero ring:
This subclass is indented under subclass 241. Subject matter wherein the six-membered heterocyclic compound has nitrogen bonded directly to at least one of the ring carbons.

Polycyclo ring system having a 1,3,5-triazine as one of the cyclos:
This subclass is indented under subclass 241. Subject matter wherein the six-membered heterocyclic compound is a 1,3,5-triazine which is a part of a fused ring or bridged ring system.

Hetero ring is six-membered consisting of two nitrogens and four carbon atoms (e.g., pyridazines, etc.):
This subclass is indented under subclass 183. Subject matter wherein the active ingredient has a six-membered heterocyclic
nucleus which consists of two nitrogen and four carbon atoms, e.g., [figure] [caption], etc.

Polycyclo ring system having a 1,2-or 1,4-diazine as one of the cyclos:
This subclass is indented under subclass 247. Subject matter wherein the six-membered heterocyclic ring is a part of a fused ring or bridged ring system wherein the two nitrogens occupy the 1,2, or 1,4-positions of the diazine ring, e.g., [figure] [caption], etc.

1,4-diazine as one of the cyclos:
This subclass is indented under subclass 248. Subject matter wherein a 1,4-diazine ring is a part of the fused or bridged ring system.

At least three rings in the polycyclo ring system:
This subclass is indented under subclass 249. Subject matter wherein the active ingredient is a tricyclo and has the 1,4-diazine nucleus as one of the cyclos, e.g., [figure] [caption], etc.

Isoalloxazine (e.g., riboflavins, vitamin B2, etc.):
This subclass is indented under subclass 250. Subject matter in which the 1,4, diazine is part of a radical having the following structure: [figure]
(1) Note. In a derivative, the ring structure and carbonyl moieties must remain intact. Any position on the ring may be substituted.
(2) Note. This subclass provides for a vitamin B[subscrpt]2[end subscrpt] (or G) composition.
(3) Note. A patent with a claim directed to a riboflavin composition will be placed here and not in subclass 23.

1,2-diazines attached directly or indirectly to an additional hetero ring by nonionic bonding:
This subclass is indented under subclass 247. Subject matter wherein the six-membered hetero ring is a 1,2 diazine ring which is attached directly or indirectly to an additional hetero ring by nonionic bonding.

SEE OR SEARCH CLASS:
544, Carbon Compounds, subclasses 224-241 for compounds which include a 1,2-diazine ring.

The additional hetero ring is a diazine:
This subclass is indented under subclass 252.01. Subject matter wherein the additional hetero ring is a six-membered hetero ring consisting of two nitrogens and four carbon atoms.

The additional hetero ring is six-membered consisting of one nitrogen and five carbon atoms:
This subclass is indented under subclass 252.01. Subject matter wherein the additional hetero ring consists of five carbon atoms and one nitrogen atom.

Polycyclo ring system having the additional six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 252.03. Subject matter wherein the additional six-membered hetero ring is a cyclo of a polycyclo ring system.

The additional hetero ring is a five-membered nitrogen containing hetero ring:
This subclass is indented under subclass 252.01. Subject matter wherein the additional hetero ring has five members, at least one of which is nitrogen.

Polycyclo ring system having the additional five-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 252.05. Subject matter wherein the additional nitrogen containing five-membered hetero ring is a cyclo of a polycyclo ring system.

1,4 diazines:
This subclass is indented under subclass 247. Subject matter wherein the six-membered hetero ring is a 1, 4-diazine ring..

SEE OR SEARCH CLASS:
544, Carbon Compounds, subclasses 336-410, for compounds which include a 1,4-diazine ring.

Plural 1,4-diazine rings attached directly or indirectly to each other by nonionic bonding:
This subclass is indented under subclass 252.10. Subject matter wherein an additional 1,4-diazine ring is attached directly or indirectly by nonionic bonding to the 1,4-diazine ring.

Piperazines (i.e. fully hydrogenated 1,4-diazines):
This subclass is indented under subclass 252.10. Subject matter wherein the 1,4-diazine ring is fully saturated.

Additional hetero ring attached directly or indirectly to the
piperazine ring by nonionic bonding:
This subclass is indented under subclass 252.12. Subject matter wherein the piperazine ring is attached directly or indirectly to an additional hetero ring by nonionic bonding.

The additional hetero ring is a 1,3-diazine ring:
This subclass is indented under subclass 252.13. Subject matter wherein the additional hetero ring consists of four carbon atoms and two nitrogens; the nitrogens are in the 1- and 3- positions of the ring.

Spiro ring system containing:
This subclass is indented under subclass 252.14. Subject matter wherein the active ingredient containing the diazine rings includes a spiro ring system.
(1) Note. Neither the 1,4-diazine ring nor the 1,3-diazine ring has to be part of the spiro ring system.

Polycyclo ring system having the additional 1,3-diazine ring as one of the cyclos:
This subclass is indented under subclass 252.14. Subject matter wherein the additional 1,3-diazine ring is a cyclo of a polycyclo ring system.

The polycyclo ring system is quinazoline (including hydrogenated):
This subclass is indented under subclass 252.16. Subject matter wherein the 1,3-diazine is part of a quinazoline ring system, which may be hydrogenated.

Additional six-membered hetero consisting of five ring
carbons and one ring nitrogen attached directly or indirectly to the 1,3-diazine by nonionic bonding:
This subclass is indented under subclass 252.14. Subject matter wherein the 1,3-diazine ring is attached directly or indirectly by nonionic bonding to an additional six-membered hetero ring that consists of five ring carbons and one ring nitrogen.

Five-membered nitrogen hetero ring attached directly or indirectly to the 1,3-diazine ring by nonionic bonding:
This subclass is indented under subclass 252.14. Subject matter wherein the 1,3-diazine ring is attached directly or indirectly by nonionic bonding to an additional five-membered nitrogen hetero ring.

Oxygen hetero ring attached directly or indirectly to the 1,3-diazine ring by nonionic bonding:
This subclass is indented under subclass 252.14. Subject matter wherein the 1,3 diazine ring is attached directly or indirectly by nonionic bonding to a hetero ring having oxygen as a ring member.

The additional hetero ring is six-membered consisting of one nitrogen and five carbon atoms:
This subclass is indented under subclass 252.13. Subject matter wherein the additional hetero ring has exactly six members and consists of five carbon atoms and one nitrogen atom.

Polycyclo ring system having the additional six-membered nitrogen hetero ring as one of the cyclos:
This subclass is indented under subclass 253.01. Subject matter wherein the additional six-membered hetero ring consisting of five ring carbons and one ring nitrogen is a cyclo of a polycyclo ring system.

Tricyclo ring system having the additional six-membered nitrogen hetero ring as one of the cyclos:
This subclass is indented under subclass 253.02. Subject matter wherein the polycyclo ring system containing the additional six-membered hetero ring consisting of five ring carbons and one ring nitrogen has exactly three cyclos.

Bicyclo ring system having the additional six-membered nitrogen hetero ring as one of the cyclos:
This subclass is indented under subclass 253.02. Subject matter wherein the polycyclo ring system containing the additional six-membered hetero ring consisting of five ring carbons and one ring nitrogen has exactly two cyclos.

Isoquinolines (including hydrogenated):
This subclass is indented under subclass 253.04. Subject matter wherein the bicyclo ring system is an isoquinoline ring system, which may be hydrogenated.

Quinolines (including hydrogenated):
This subclass is indented under subclass 253.04. Subject matter wherein the bicyclo ring system is a quinoline ring system which may be hydrogenated.

Chalcogen bonded directly to carbon of the hetero ring of the quinoline ring system:
This subclass is indented under subclass 253.06. Subject matter wherein a chalcogen atom (i.e. oxygen, sulfur, selenium, or tellurium) is bonded directly to a ring carbon of the hetero ring of the quinoline ring system.

Having -C (=X)-, wherein X is chalcogen, bonded directly to carbon of the hetero ring of thequinoline ring system:
This subclass is indented under subclass 253.07. Subject matter wherein a -C(=X)- group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium, or tellurium), is bonded directly to carbon of the hetero ring of the quinoline ring system.

Five-membered nitrogen hetero ring attached directly or indirectly to the piperazine ring by nonionic bonding:
This subclass is indented under subclass 253.01. Subject matter wherein the piperazine ring is attached directly or indirectly by nonionic bonding to a five-membered hetero ring having ring nitrogen.

The five-membered nitrogen hetero ring has chalcogen as a ring member:
This subclass is indented under subclass 253.09. Subject matter wherein the five-membered nitrogen hetero ring also contains chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) as a member of the hetero ring.

Chalcogen hetero ring attached directly or indirectly to the piperazine ring by nonionic bonding:
This subclass is indented under subclass 253.01. Subject matter wherein a hetero ring having chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) as a ring member is attached directly or indirectly to the piperazine ring by nonionic bonding.

Chalcogen bonded directly to ring carbon of the additional six-membered nitrogen containing hetero ring:
This subclass is indented under subclass 253.01. Subject matter wherein the additional six-membered nitrogen
containing hetero ring consisting of five ring carbons and one ring nitrogen has a chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) bonded directly to carbon of its ring.

Having -C (=X)-, wherein X is chalcogen, bonded directly to the additional six-membered nitrogen hetero ring:
This subclass is indented under subclass 253.01. Subject matter wherein the additional six-membered nitrogen hetero ring consisting of five ring carbons and one ring nitrogen has a -C(=X)- group, wherein X is chalcogen (i.e. oxygen, sulfur, selenium, or tellurium), bonded directly thereto.

The additional hetero ring is five-membered having ring nitrogen:
This subclass is indented under subclass 252.13. Subject matter wherein the additional hetero ring has exactly five members, including ring nitrogen.

The additional five-membered hetero ring also has chalcogen as a ring member:
This subclass is indented under subclass 254.01. Subject matter wherein nitrogen and chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) are ring members of the additional five-membered hetero ring.

The additional five-membered hetero ring consists of two ring carbons, two ring nitrogens, and one ring chalcogen (e.g., oxadiazolyl, thiadiazolyl, etc.):
This subclass is indented under subclass 254.02. Subject matter wherein the additional five-membered hetero ring has two nitrogens and one chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) as the ring hetero atoms.

The additional five-membered hetero ring consists of three ring carbons, and of nitrogen and chalcogen in adjacent ring positions (e.g., isoxaazolyl, isothiazolyl, etc.):
This subclass is indented under subclass 254.02. Subject matter wherein one chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) and one nitrogen are adjacent ring members of the additional five-membered hetero ring, and the remaining ring members are carbon.

Plural nitrogens in the additional five-membered hetero ring:
This subclass is indented under subclass 254.01. Subject matter wherein the additional five-membered hetero ring contains at least two ring nitrogen atoms.

Polycyclo ring system having the plural nitrogen containing additional five-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 254.05. Subject matter wherein the additional plural nitrogen containing five-membered hetero ring is a cyclo of a polycyclo ring system.

Chalcogen hetero ring attached directly or indirectly to the piperazine ring by nonionic bonding:
This subclass is indented under subclass 254.05. Subject matter wherein a chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) containing hetero ring is attached directly or indirectly to the piperazine ring by nonionic bonding.

Polycyclo ring system having the additional five-membered nitrogen hetero ring as one of the cyclos:
This subclass is indented under subclass 254.01. Subject matter wherein the five-membered hetero ring is a cyclo of a ploycyclo ring system.

Indole ring system (including hydrogenated) attached directly or indirectly to the piperazine ring by nonionic bonding:
This subclass is indented under subclass 254.08. Subject matter wherein the polycyclo ring system consists of exactly two ortho-fused rings with the nitrogen being in the 1-position of the five-membered hetero ring, and the second ring consisting of six carbon atoms.

Ring oxygen in the additional hetero ring:
This subclass is indented under subclass 252.13. Subject matter wherein the additional hetero ring has at least one ring oxygen atom.

Polycyclo ring system having the additional oxygen hetero ring as one of the cyclos:
This subclass is indented under subclass 254.10. Subject matter wherein the additional oxygen containing hetero ring is a cyclo of a polycyclo ring system.

Nitrogen or -C(=X)-, wherein X is chalcogen, bonded directly to the piperazine ring:
This subclass is indented under subclass 252.12. Subject matter wherein nitrogen or a -C(=X)- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), is bonded directly to the piperazine ring.

Chalcogen bonded directly to a piperazine ring carbon:
This subclass is indented under subclass 252.12. Subject matter wherein a chalcogen (i.e. oxygen, sulfur, selenium, or tellurium) is bonded directly to carbon of the piperazine ring.

Carbocyclic ring bonded directly to the piperazine ring:
This subclass is indented under subclass 252.12. Subject matter wherein the piperazine ring is bonded directly to a carbocyclic ring.

Plural carbocyclic rings bonded directly to the same acyclic carbon atom which is attached directly or indirectly to the piperazine ring by nonionic bonding:
This subclass is indented under subclass 252.12. Subject matter wherein the piperazine ring is attached directly or indirectly by nonionic bonding to an acyclic carbon atom which is bonded to plural carbocyclic rings.

Additional hetero ring attached directly or indirectly to the 1,4-diazine ring by nonionic bonding:
This subclass is indented under subclass 252.10. Subject matter wherein the 1,4-diazine ring is attached directly or indirectly by nonionic bonding to an additional hetero ring

Nitrogen or -C(=X)-, wherein X is chalcogen, bonded directly to ring carbon of the 1,4- diazine ring:
This subclass is indented under subclass 252.10. Subject matter wherein a ring carbon of the 1,4-diazine ring is bonded directly to a nitrogen atom or a -C(=X)- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

1,3-diazines (e.g., pyrimidines, etc.):
This subclass is indented under subclass 247. Subject matter in which the ring nitrogen atoms occupy the 1,3 positions of the diazine nucleus i.e., [figure]

Polycyclo ring system having 1,3-diazine as one of the cyclos:
This subclass is indented under subclass 256. Subject matter in which the 1,3 - diazine is a part of a polycyclo ring system, e.g., [figure] [caption], etc.

Bicyclo ring system having 1,3-diazine as one of the cyclos:
This subclass is indented under subclass 257. Subject matter in which the polycyclo is a bicyclo.

Quinazolines (including hydrogenated):
This subclass is indented under subclass 258. Subject matter which contains the quinazoline nucleus, i.e., as illustrated below, or hydrogenated forms thereof. [figure]

Nitrogen bonded directly to the 1,3-diazine at 2-position:
This subclass is indented under subclass 259. Subject matter wherein a nitrogen is directly bonded to the 2-position of the quinazoline nucleus, e.g., [figure] [figure] [caption], etc.

Purines (including hydrogenated):
This subclass is indented under subclass 258. Subject matter wherein the active ingredient contains the purine nucleus, i.e., as illustrated below, or hydrogenated forms thereof. [figure]

Chalcogen bonded directly to a ring carbon of the purine:
This subclass is indented under subclass 261. Subject matter wherein a chalcogen is directly bonded to a ring carbon of the purine nucleus, e.g., [figure] [caption], etc.

At both 2- and 6-positions (e.g., theophylline, etc.):
This subclass is indented under subclass 262. Subject matter wherein carbons in the 2,6-positions of the purine nucleus are each bonded to chalcogen, e.g., xanthine, caffeine, theobromine, theophylline, etc.

With an additional active ingredient or stabilizer:
This subclass is indented under subclass 263. Subject matter wherein another active ingredient or stabilizing agent for the purine compound is present in the composition.

Additional hetero ring:
This subclass is indented under subclass 263. Subject matter wherein the purine compound contains a substituent which is a heterocyclic ring or contains a heterocyclic ring.

Additional hetero ring:
This subclass is indented under subclass 261. Subject matter wherein the purine compound has a substituent which is a heterocyclic ring or contains a heterocyclic ring.

Tricyclo ring system having 1,3-diazine as one of the cyclos:
This subclass is indented under subclass 257. Subject matter wherein the 1,3-diazine is a part of a tricyclo ring system.

Perimidines (including hydrogenated):
This subclass is indented under subclass 267. Subject matter wherein the active ingredient contains the following structure: [figure]

Pyrimidines with chalcogen bonded directly to a ring carbon of said pyrimidine moiety:
This subclass is indented under subclass 256. Subject matter wherein the 1,3-diazine has a chalcogen bonded directly to a ring carbon thereof, e.g., [figure] [caption], etc.

Barbituric acid or derivative (including thioanalogs):
This subclass is indented under subclass 269. Subject matter wherein the 1,3-diazine is of the structure, illustrated below, wherein X is oxygen or sulfur or the enol form thereof and R and/or R' are hydrogen, alkyl or aryl. [figure]
(1) Note. For this subclass, the three keto groups must be present on the 1,3 diazine ring.

Two or more barbituric acid compounds or with an additional active ingredient or stabilizer:
This subclass is indented under subclass 270. Subject matter which contains two or more compounds each having the moiety, as shown below, or one compound having said moiety and an additional organic active ingredient or stabilizing agent. [figure]
(1) Note. Included herein is the combination of barbituric acid and a salt thereof and complexes of two or more active ingredients, or active ingredient complexed with stabilizing agent.
(2) Note. Potentiating and synergistic agents are considered active ingredients.
(3) Note. See section II, Glossary, for the definition of a stabilizing agent.

Nitrogen bonded directly to the 1,3-diazine at 2-position:
This subclass is indented under subclass 269. Subject matter wherein a nitrogen is bonded directly to the 1,3-diazine at the 2- position, e.g., [figure] [caption], etc.

The nitrogen is part of a hetero ring:
This subclass is indented under subclass 272. Subject matter wherein the nitrogen is a part of a heterocyclic ring, e.g., [figure] [caption], etc.

Chalcogen bonded directly to pyrimidine at 2-position:
This subclass is indented under subclass 269. Subject matter wherein a chalcogen is directly bonded to the 2-position of the pyrimidine.
(1) Note. This subclass includes for example: [figure] [caption], etc.

Nitrogen bonded directly to the 1,3-diazine at 2-position by a single bond:
This subclass is indented under subclass 256. Subject matter wherein the nitrogen is directly bonded to the 1,3-diazine at the 2-position by a single bond.

Thiamines (e.g., vitamin B1. etc.):
This subclass is indented under subclass 256. Subject matter wherein the 1,3 diazine compound contains the structure, as shown below, e.g., vitamin B1, etc. [figure]

Hetero ring is six-membered consisting of one nitrogen and five carbon atoms:
This subclass is indented under subclass 183. Subject matter which contains a six-membered heterocyclic ring consisting of one nitrogen and five carbon atoms.

Spiro ring system:
This subclass is indented under subclass 277. Subject matter which contains a spiro ring system.

Polycyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 277. Subject matter wherein the six-membered hetero ring is one of the cyclos of a polycyclo ring system.

Pentacyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 279. Subject matter wherein the polycyclo ring system consists of exactly five rings.

Two of the cyclos share at least three ring members, (i.e., bridged):
This subclass is indented under subclass 280. Subject matter wherein two cyclos of the polycyclo ring system share at least three ring members.

One of the five cyclos is five-membered and includes ring chalcogen (e.g., codeine, morphine, etc.):
This subclass is indented under subclass 281. Subject matter wherein one of the pentacyclo ring system is a five-membered hetero ring which contains ring chalcogen, (i.e., oxygen, sulfur, selenium or tellurium).

Ring nitrogen in the pentacyclo ring system is shared by five-membered cyclo and six-membered cyclo (e.g., vincamine, etc.):
This subclass is indented under subclass 280. Subject matter wherein the ring nitrogen of the six-membered hetero ring is additionally a member of a five-membered cyclo in the pentacyclo ring system.

Tetracyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 279. Subject matter wherein the polycyclo ring system consists of exactly four rings.

Plural hetero atoms in the tetracyclo ring system (e.g., acronycines, etc.):
This subclass is indented under subclass 284. Subject matter wherein the tetracyclo ring system contains at least one ring hetero atom in addition to the ring nitrogen of the six-membered hetero ring.

Two of the cyclos share at least three ring members (i.e., bridged):
This subclass is indented under subclass 286. Subject matter wherein two cyclos of the polycyclo ring system share at least three ring members.

Three or more hetero atoms in the tetracyclo ring system:
This subclass is indented under subclass 285. Subject matter wherein the tetracyclo ring system contains at least two ring hetero atoms in addition to the ring nitrogen of the six-membered hetero ring.

Ring carbon is shared by three of the cyclos:
This subclass is indented under subclass 285. Subject matter wherein one ring carbon is a member of three of the cyclos in the tetracyclo ring system (i.e., peri-fusion).

Two of the cyclos share at least three ring members (i.e., bridged) (e.g., morphinans etc.):
This subclass is indented under subclass 284. Subject matter wherein two cyclos of the polycyclo ring system share at least three ring carbons.

Tricyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 279. Subject matter wherein the polycyclo ring system consists of exactly three rings.

Plural hetero atoms in the tricyclo ring system:
This subclass is indented under subclass 290. Subject matter wherein the tricyclo ring system contains at least one ring hetero atom in addition to the ring nitrogen of the six-membered hetero ring.

Plural ring nitrogens in the tricyclo ring system:
This subclass is indented under subclass 291. Subject matter
wherein the tricyclo ring system contains at least two ring nitrogens.

Three or more hetero atoms in the tricyclo ring system:
This subclass is indented under subclass 292. Subject matter wherein the tricyclo ring system contains at least three ring hetero atoms.

Ring nitrogen is shared by two of the cyclos:
This subclass is indented under subclass 290. Subject matter wherein a ring nitrogen is a member of two of the cyclos in the tricyclo ring system.

Two of the cyclos share at least three ring carbons (i.e., bridged) (e.g., benzomorphans, etc.):
This subclass is indented under subclass 290. Subject matter wherein two cyclos of the polycyclo ring system share at least three ring carbons.

Ring carbon is shared by each of the three cyclos (e.g., 1,8-naphthalimides, etc.):
This subclass is indented under subclass 290. Subject matter wherein a ring carbon is a member of each of the cyclos of the tricyclo ring system.

Acridines (including hydrogenated):
This subclass is indented under subclass 290. Subject matter wherein the tricyclo ring system has the following basic structure, which may contain double bonds between ring members: [figure]

Phenathridines (including hydrogenated):
This subclass is indented under subclass 290. Subject matter wherein the tricyclo ring system has the following structure, which may contain double bonds between ring members: [figure]

Bicyclo ring system having the six-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 279. Subject matter wherein the polycyclo ring system consists of exactly two ring.

Plural hetero atoms in the bicyclo ring system:
This subclass is indented under subclass 299. Subject matter wherein the bicyclo ring system includes at least one ring hetero atom in addition to the ring nitrogen of the six-membered hetero ring.

Ring sulfur in the bicyclo ring system:
This subclass is indented under subclass 300. Subject matter wherein the bicyclo ring system contains ring sulfur.

Ring oxygen in the bicyclo ring system:
This subclass is indented under subclass 300. Subject matter wherein the bicyclo ring system contains ring oxygen.

Exactly three ring nitrogens in the bicyclo ring system:
This subclass is indented under subclass 300. Subject matter
wherein the bicyclo ring system contains exactly three ring nitrogens.

Tropanes (including nor or dehydro forms):
This subclass is indented under subclass 299. Subject matter wherein the bicyclo ring system has the following basic structure: [figure]

Quinuclidines (including unsaturation):
This subclass is indented under subclass 299. Subject matter wherein the bicyclo ring system has the following basic structure, which may contain double bonds between ring members: [figure]

Quinolizines (including hydrogenated):
This subclass is indented under subclass 299. Subject matter wherein the bicyclo ring system has the following basic structure, which may contain double bonds between ring members: [figure]

Isoquinolines (including hydrogenated):
This subclass is indented under subclass 299. Subject matter wherein the bicyclo ring system has the following structure, which may contain double bonds between ring members. [figure]

Plural isoquinoline ring systems attached directly or indirectly to each other by nonionic bonding:
This subclass is indented under subclass 307. Subject matter which contains at least two isoquinoline ring systems that are attached directly or indirectly to each other by nonionic bonding.

Chalcogen attached directly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 307. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is attached directly to the six-membered hetero ring of the isoquinoline ring system by nonionic bonding.

Nitrogen, other than as nitro or nitroso, attached directly to the isoquinoline ring system by nonionic bonding:
This subclass is indented under subclass 307. Subject matter wherein nitrogen, except as a member of the nitro (-NO[subscrpt]2[end subscrpt]) or nitroso (-NO) group, is attached directly to the isoquinoline ring system by nonionic bonding.

Quinolines (including hydrogenated):
This subclass is indented under subclass 299. Subject matter wherein the bicyclo ring system has the following basic structure, which may contain double bonds between ring members: [figure]

Chalcogen attached directly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 311. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is attached directly to the six-membered hetero ring of the quinoline ring system by nonionic bonding.

Nitrogen, other than as nitro or nitroso, attached directly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 311. Subject matter
wherein nitrogen, except as a member of the nitro (-NO[subscrpt]2[end subscrpt]) or nitroso (-NO) group, is attached directly to the six-membered hetero ring of the quinoline ring by nonionic bonding.

Additional hetero ring attached directly or indirectly to the quinoline ring system by nonionic bonding:
This subclass is indented under subclass 311. Subject matter wherein a hetero ring is attached directly or indirectly to the quinoline ring system by nonionic bonding.
(1) Note. Included herein are compounds which contain at least two quinoline ring systems that are attached directly or indirectly to each other by nonionic bonding.

Piperidines:
This subclass is indented under subclass 277. Subject matter wherein the six-membered hetero ring, consisting of one nitrogen and five carbons, contains no double bonds between ring members, i.e., the piperidine ring.

Plural piperidine rings:
This subclass is indented under subclass 315. Subject matter wherein the compound contains at least two piperidine rings.

Additional ring containing:
This subclass is indented under subclass 315. Subject matter which contains an additional ring.

The additional ring is a six-membered hetero ring consisting of one nitrogen and five carbon atoms:
This subclass is indented under subclass 317. Subject matter
wherein the additional ring is a pyridine ring or partially hydrogenated pyridine ring.

The additional ring is one of the cyclos in a polycyclo ring system:
This subclass is indented under subclass 317. Subject matter wherein the additional ring is one of the cyclos in a polycyclo ring system.

Hetero ring in the polycyclo ring system:
This subclass is indented under subclass 319. Subject matter wherein the polycyclo ring system contains a hetero ring.

Plural hetero atoms in the polycyclo ring system:
This subclass is indented under subclass 320. Subject matter wherein the polycyclo ring system contains at least two ring hetero atoms.

Plural ring nitrogens in the polycyclo ring system:
This subclass is indented under subclass 321. Subject matter wherein the polycyclo ring system contains at least two ring nitrogen atoms.

Ring nitrogen in the polycyclo ring system:
This subclass is indented under subclass 320. Subject matter wherein the polycyclo ring system contains a ring nitrogen.

Ring sulfur in the polycyclo ring system:
This subclass is indented under subclass 320. Subject matter wherein the polycyclo ring system contains a ring sulfur.

Polycyclo ring system is tricyclo-carbocyclic:
This subclass is indented under subclass 319. Subject matter wherein the polycyclo ring system consists of three carbocyclic rings.

The additional ring is a hetero ring:
This subclass is indented under subclass 317. Subject matter wherein the additional ring is a hetero ring.

Chalcogen bonded directly to ring carbon of the piperidine ring:
This subclass is indented under subclass 317. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to a ring carbon of the piperidine ring.

Plural chalcogens bonded directly to ring carbons of the piperidine ring:
This subclass is indented under subclass 327. Subject matter wherein at least two chalcogens (i.e., oxygen, sulfur, selenium or tellurium) are bonded directly to ring carbons of the piperidine rings.

Nitrogen attached directly to the piperidine ring by nonionic bonding:
This subclass is indented under subclass 317. Subject matter wherein nitrogen is attached directly to the piperidine ring by nonionic bonding.

C=X bonded directly to the piperidine ring (X is chalcogen):
This subclass is indented under subclass 317. Subject matter wherein a C=O, C=S, C=Se or C=Te group is bonded directly to the piperidine ring.

Nitrogen attached indirectly to the piperidine ring nonionic bonding:
This subclass is indented under subclass 317. Subject matter wherein nitrogen is attached indirectly to the piperidine ring by nonionic bonding.

Plural six-membered hetero rings consisting of one nitrogen and five carbon atoms:
This subclass is indented under subclass 277. Subject matter which contains at least two of the six-membered hetero rings, each consisting of one nitrogen and five carbons and having at least one double bond between ring members, i.e., pyridine or partially hydrogenated pyridine rings.

Additional hetero ring other than the six-membered hetero rings:
This subclass is indented under subclass 332. Subject matter containing an additional hetero ring other than the six-membered hetero rings consisting of one nitrogen and five carbon atoms.

The six-membered rings are bonded directly to each other:
This subclass is indented under subclass 332. Subject matter wherein pyridine or partially hydrogenated pyridine rings are bonded directly to each other.

Chalcogen bonded directly to a ring carbon of the six-membered hetero ring:
This subclass is indented under subclass 332. Subject matter wherein chalcogen (i.e., oxygen sulfur, selenium, tellurium) is bonded directly to a ring carbon of a pyridine or partially hydrogenated pyridine ring.

Additional hetero ring containing:
This subclass is indented under subclass 277. Subject matter which contains an additional hetero ring in the compound other than the six-membered hetero ring consisting of one nitrogen and five carbons, i.e., an additional hetero ring other than a pyridine or partially hydrogenated pyridine ring.

The additional hetero ring is one of the cyclos in a polycyclo ring system:
This subclass is indented under subclass 336. Subject matter wherein the additional hetero ring is one of the cyclos in a polycyclo ring system.

Plural hetero atoms in the polycyclo ring system:
This subclass is indented under subclass 337. Subject matter wherein the polycyclo ring system contains at least two ring hetero atoms.

Ring nitrogen in the polycyclo ring system:
This subclass is indented under subclass 337. Subject matter wherein the polycyclo ring system contains one ring nitrogen.

Ring nitrogen in the additional hetero ring (e.g., oxazole, etc.):
This subclass is indented under subclass 336. Subject matter wherein the additional hetero ring contains ring nitrogens.

The additional hetero ring consists of two nitrogens and three carbons:
This subclass is indented under subclass 340. Subject matter wherein the additional hetero ring consists of two nitrogens and three carbons.

Ring sulfur in the additional hetero ring:
This subclass is indented under subclass 340. Subject matter wherein the additional hetero ring contains ring sulfur.

The additional hetero ring consists of one nitrogen and four carbons (e.g., nicotine, etc.):
This subclass is indented under subclass 340. Subject matter wherein the additional hetero ring consists of one nitrogen and four carbon atoms.

Cyano bonded directly to the six-membered hetero ring:
This subclass is indented under subclass 277. Subject matter which contains the -C=N group bonded directly to the six-membered hetero ring.

Chalcogen bonded directly to ring carbon of the six-membered hetero ring:
This subclass is indented under subclass 277. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to a ring carbon of the six-membered hetero ring.

Chalcogen and cyclic nitrogen bonded directly to the same carbon:
This subclass is indented under subclass 345. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) and acyclic nitrogen are bonded directly to the same carbon.

Chalcogen bonded directly to chalcogen:
This subclass is indented under subclass 345. Subject matter wherein chalcogen (i.e., oxygen, sulfur, selenium or tellurium) is bonded directly to chalcogen.

Chalcogens bonded directly to at least two ring carbons of the six-membered hetero ring:
This subclass is indented under subclass 345. Subject matter wherein chalcogens (i.e., oxygen, sulfur, selenium or tellurium) are bonded directly to at least two ring carbons of the six-membered hetero ring.

Nitrogen attached directly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 345. Subject matter wherein nitrogen is attached directly to the six-membered hetero ring by nonionic bonding.

C=O bonded directly to the six-membered hetero ring:
This subclass is indented under subclass 345. Subject matter
wherein a C=O group is bonded directly to the six-membered hetero ring.

Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 345. Subject matter wherein nitrogen is attached indirectly to the six-membered hetero ring by nonionic bonding.

Nitrogen attached directly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 277. Subject matter wherein nitrogen is attached directly to the six-membered hetero ring by nonionic bonding.

Plural acyclic nitrogens bonded directly to the same carbon or bonded directly to each other:
This subclass is indented under subclass 352. Subject matter wherein at least two acyclic nitrogens are bonded directly to the same carbon or single bonded directly to each other.

C=O bonded directly to the six-membered hetero ring:
This subclass is indented under subclass 277. Subject matter wherein a C=O group is bonded directly to the six-membered hetero ring.

At 3-position:
This subclass is indented under subclass 354. Subject matter wherein the C=O group is attached directly to the 3-position of the six-membered hetero ring e.g., [figure] [caption], etc.

C=O in a C(=O)O group (e.g., nicotinic acid, etc.):
This subclass is indented under subclass 355. Subject matter wherein the C=O is part of aO group.

Nitrogen attached indirectly to the six-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 277. Subject matter wherein nitrogen is attached indirectly to the six-membered hetero ring by nonionic bonding.

The ring nitrogen of the six-membered hetero ring is pentavalent (e.g., quaternary pyridinium salts, etc.):
This subclass is indented under subclass 277. Subject matter wherein the ring nitrogen of the six-membered ring is pentavalent.
(1) Note. Examples of compounds provided for herein are: [figure] [figure] [caption], etc.

Five-membered hetero ring containing at least one nitrogen ring atom (e.g., 1,2,3-triazoles, etc.):
This subclass is indented under subclass 183. Subject matter wherein the hetero ring is five-membered and contains at least one ring nitrogen, e.g., 1,2,3-triazoles, etc.

Plural ring chalcogens in the hetero ring:
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring contains at least two ring chalcogen atoms in addition to the ring nitrogen and ring carbon, etc., 1,2,4-dithiazoles, etc.

Plural ring nitrogens and a single chalcogen in the hetero ring:
This subclass is indented under subclass 359. Subject matter wherein the five-member hetero ring contains at least two ring nitrogens and only one ring chalcogen.

1,2,5-thiadiazoles (including hydrogenated):
This subclass is indented under subclass 361. Subject matter wherein the hetero ring is 1,2,5-thiadiazole having the following structure, as illustrated below, or hydrogenated form thereof. [figure]

1,3,4,-thiadiazoles (including hydrogenated):
This subclass is indented under subclass 361. Subject matter wherein the hetero ring is 1,3,4,-Thiadiazole having the following structure, as illustrated below, or hydrogenated form thereof. [figure]

Oxadiazoles (including hydrogenated):
This subclass is indented under subclass 361. Subject matter wherein the hetero ring contains one ring oxygen and two ring nitrogens as the only hetero atoms of the ring and may have a double bond between ring members, e.g., [figure] [caption], etc.

1,2-thiazoles (including hydrogenated):
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is a 1,3-thiazole ring which includes the following basic ring structure, as illustrated below, and may contain a double bond between ring members. [figure]
(1) Note. See section II, Glossary, for the definition of
"including hydrogenated".

Polycyclo ring system having the thiazole ring as one of the cyclos:
This subclass is indented under subclass 365. Subject matter wherein the 1,3-thiazole ring is a cyclo of a polycyclo ring system.

Bicyclo ring system having the thiazole ring as one of the cyclos:
This subclass is indented under subclass 366. Subject matter wherein the polycyclo ring system consists of exactly two rings.

Ring nitrogen is shared by the cyclos of the bicyclo ring system (e.g., tetramisole, etc.):
This subclass is indented under subclass 367. Subject matter wherein the ring nitrogen is a member of both of the cyclos in the bicyclo ring system, e.g., tetramisole etc.

Chalcogen bonded directly to ring carbon of the thiazole ring:
This subclass is indented under subclass 365. Subject matter wherein chalcogen is bonded directly to ring carbon of the 1,3-thiazole ring.

Nitrogen bonded directly ring carbon of the thiazole ring:
This subclass is indented under subclass 365. Subject matter wherein nitrogen is bonded directly to ring carbon of the 1,3-thiazole ring.

C=X bonded directly to the nitrogen which is bonded directly to the thiazole ring (X is chalcogen):
This subclass is indented under subclass 370. Subject matter wherein the nitrogen is bonded additionally directly to a C=O or C=S group.

1,2-thiazoles (including hydrogenated):
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is a 1,2-thiazole ring which includes the following basic ring structure, illustrated below, and may contain a double bond between ring members. [figure]
(1) Note. See section II, Glossary, for the definition of "including hydrogenated".

Polycyclo ring system having the thiazole ring as one of the cyclos:
This subclass is indented under subclass 372. Subject matter wherein the 1,2-thiazole ring is a cyclo of a polycyclo ring system.

1,3-oxazoles (including hydrogenated):
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is a 1,3-oxazole ring which includes the following basic ring structure, illustrated below, and may contain a double bond between ring members. [figure]
(1) Note. See section II, Glossary, for the definition "including hydrogenated".

Polycyclo ring system having the oxazole ring as one of the cyclos:
This subclass is indented under subclass 374. Subject matter wherein the 1,3-oxazole ring is a cyclo of a polycyclo ring system.

Chalcogen bonded directly to ring carbon of the oxazole ring:
This subclass is indented under subclass 374. Subject matter wherein chalcogen is bonded directly to ring carbon of the 1,3-oxazole ring.

Nitrogen bonded directly to ring carbon of the oxazole ring:
This subclass is indented under subclass 374. Subject matter wherein nitrogen is bonded directly to ring carbon of the 1,3-oxazole ring.

1,2-oxazoles (including hydrogenated):
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is a 1,2-oxazole ring which includes the following basic ring structure, illustrated below, and may contain a double bond between ring members. [figure]
(1) Note. See section II, Glossary, for the definition "including hydrogenated".

Polycyclo ring system having the oxazole ring as one of the cyclos:
This subclass is indented under subclass 378. Subject matter wherein the 1,2-oxazole ring is a cyclo of a polycyclo ring system.

Chalcogen or nitrogen bonded directly to ring carbon of the
oxazole ring:
This subclass is indented under subclass 378. Subject matter wherein chalcogen or nitrogen is bonded directly to ring carbon of the 1,2-oxazole ring.

Tetrazoles (including hydrogenated):
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring consists of four ring nitrogens and one ring carbon and may have double bond between ring members.

Additional chalcogen containing hetero ring:
This subclass is indented under subclass 381. Subject matter which contains an additional chalcogen containing hetero ring.

1,2,4-triazoles (including hydrogenated):
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is 1,2,4-triazole having the following structure, illustrated below, or hydrogenated form thereof. [figure] [caption]or [figure]

Chalcogen bonded directly to the triazole ring:
This subclass is indented under subclass 383. Subject matter wherein chalcogen is directly bonded to the 1,2,4-triazole.

1,3-diazoles:
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is a 1,3-diazole ring which includes the following basic ring structure, illustrated below, and may contain a double bond between ring
members. [figure]

Divalent chalcogen or acyclic nitrogen double bonded directly to ring carbon of the diazole ring, or tautomeric equivalent:
This subclass is indented under subclass 385. Subject matter wherein a ring carbon of the 1,3-diazole ring is bonded directly by a double bond to divalent chalcogen or acyclic nitrogen, or to a group which may tautomerize thereto (e.g., hydroxyl, sulfhydryl, acyclic amino, etc.).
(1) Note. (A) all 1,3-diazoles having the following structure, as shown in the first illustration, are classified in this and indented subclasses; (B) the aminoimidazole, for example, as shown in the second illustration below, is included in this subclass though its imino tautomer, as shown in the third illustration below, may not be present in significant amounts; (C) salts in which the labile hydrogen of, for example, an hydroxy, sulfhydryl or amino tautomer is replaced with a metal or amine salt are classified here. [figure] [caption]X is chalcogen or NR; A is N or CR'; B is the remaining ring members of the 1,3-diazole; R is H or a substituent; R' is H or a substituent [figure] [figure]

Polycyclo ring system having the diazole ring as one of the cyclos:
This subclass is indented under subclass 386. Subject matter wherein the 1,3-diazole ring is one of the cyclos of a polycyclo ring system.

Nitrogen double bonded directly at 2-position of the diazole ring, or tautomeric equivalent:
This subclass is indented under subclass 387. Subject matter wherein an acyclic nitrogen is double bonded directly to the ring carbon between two ring nitrogens of the 1,3-diazole ring, or the amino tautomeric equivalent, e.g., [figure] [figure] [caption], etc.

Divalent chalcogen or acyclic nitrogen double bonded directly at both 2- and 4-positions, or tautomeric equivalent (e.g., hydantoin, etc.):
This subclass is indented under subclass 386. Subject matter wherein the ring carbons at the 2- and 4-positions of the 1,3-diazole ring are each bonded directly by a double bond to divalent chalcogen or acyclic nitrogen, or to a group which may tautomerize thereto (e.g., hydroxyl, sulfhydryl, acyclic amino, etc.).

Chalcogen or nitrogen bonded directly at 1-, 3-, or 5-position by nonionic bonding:
This subclass is indented under subclass 389. Subject matter wherein chalcogen or nitrogen is bonded directly to a ring nitrogen, or to the ring carbon at 5-position of the 1,3-diazole ring by nonionic bonding.

Benzene ring bonded directly to the diazole ring by nonionic bonding:
This subclass is indented under subclass 389. Subject matter wherein a benzene ring is bonded directly to 1,3-diazole ring by nonionic bonding.

Divalent chalcogen or acyclic nitrogen double bonded directly at 2-position, or tautomeric equivalent:
This subclass is indented under subclass 386. Subject matter wherein the ring carbon between the two ring nitrogens of the 1,3-diazole ring is bonded directly by a double bond to divalent chalcogen or acyclic nitrogen, or to a group which may tautomerize thereto (e.g., hydroxyl, sulfhydryl, acyclic amino, etc.).

Polycyclo ring system having the diazole ring as one of the cyclos:
This subclass is indented under subclass 385. Subject matter wherein the 1,3-diazole ring is one of the cyclos of a
polycyclo ring system.

Benzo fused at 4,5-positions of the diazole ring:
This subclass is indented under subclass 393. Subject matter wherein the polyclo ring system contains a benzo ring which shares the carbons at 4- and 5-positions of the 1,3-diazole ring, e.g., benzimidazoles, etc.

Chalcogen or nitrogen bonded directly at 1-,2-, or 3-position of the diazole ring by nonionic bonding:
This subclass is indented under subclass 394. Subject matter wherein chalcogen or nitrogen is bonded directly to a ring nitrogen or 2-carbon of the benzo fused 1,3-diazole ring by nonionic bonding.

Imidazoles:
This subclass is indented under subclass 385. Subject matter wherein the 1,3-diazole ring is imidazole which contains two double bonds between the ring members.

Additional hetero ring:
This subclass is indented under subclass 396. Subject matter which contains an additional hetero ring, e.g., [figure] [figure] [caption], etc.

Chalcogen or nitrogen bonded directly to the imidazole ring by nonionic bonding:
This subclass is indented under subclass 396. Subject matter wherein chalcogen or nitrogen is bonded directly to the imidazole ring by nonionic bonding.

Chalcogen or nitrogen bonded indirectly to the imidazole ring by nonionic bonding:
This subclass is indented under subclass 396. Subject matter wherein chalcogen or nitrogen is bonded indirectly to the imidazole ring by nonionic bonding.

At imidazole ring carbon:
This subclass is indented under subclass 399. Subject matter wherein the chalcogen or nitrogen is bonded indirectly to a ring carbon of the imidazole ring and not through any of the hetero atoms.

2-imidazolines:
This subclass is indented under subclass 385. Subject matter wherein the 1,3-diazole ring contains one double bond between 2-carbon and 3-nitrogen.

Additional hetero ring:
This subclass is indented under subclass 401. Subject matter which contains an additional hetero ring, e.g., [figure] [figure]

1,2-diazoles:
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring is a 1,2-diazole ring which includes the following basic ring structure, as illustrated below, and may contain a double bond between ring members. [figure]

Divalent chalcogen or acyclic nitrogen double bonded directly to ring carbon of the diazole ring, or tautomeric equivalent:
This subclass is indented under subclass 403. Subject matter wherein a ring carbon of the 1,2-diazole ring is bonded directly by a double bond to divalent chalcogen or acyclic nitrogen, or to a group which may tautomerize thereto (e.g., hydroxyl, sulfhydryl, acyclic amino, etc.).
(1) Note. (A) all 1,2-diazoles having the following structure, shown in the first illustration, are classified in this and indented subclasses; (B) the hydroxy pyrazole, for example, as shown in the second illustration below, is included in this subclass though its oxo tautomer, as shown in the third illustration below, may not be present in significant amounts; (C) Salts in which the labile hydrogen of, for example, an hydroxy, sulfhydryl or amino tautomer is replaced with a metal ion or amine salt are classified here. [figure] [caption]X is chalcogen or NR; A is N or CR'; B is the remaining ring members of the 1,2-diazole; R is H or a substituent; R' is H or a substituent [figure] [figure]

Polycyclo ring system having the diazole ring as one of the cyclos:
This subclass is indented under subclass 404. Subject matter wherein the 1,2-diazole ring is one of the cyclos of a polycyclo ring system.

Pyrazoles:
This subclass is indented under subclass 403. Subject matter wherein the 1,2-diazole ring is pyrazole which contains two double bonds between ring members.

Chalcogen or nitrogen bonded directly to the pyrazole ring by nonionic bonding:
This subclass is indented under subclass 406. Subject matter wherein chalcogen or nitrogen is bonded directly to the pyrazole ring by nonionic bonding.

The five-membered hetero ring consists of one nitrogen and four carbons:
This subclass is indented under subclass 359. Subject matter wherein the five-membered hetero ring consists of one nitrogen and four carbon atoms, e.g., pyrrolidine, etc.

Spiro ring system:
This subclass is indented under subclass 408. Subject matter which contains a spiro ring system, e.g., [figure] [caption], etc.
(1) Note. See section II, Glossary, for the definition of "spiro ring system".

Polycyclo ring system having the five-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 408. Subject matter wherein the five-membered hetero ring is one of the cyclos of a polycyclo ring system.

Tricyclo ring system having the five-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 410. Subject matter wherein the polycyclo ring system consists of exactly three cyclos, e.g., [figure] [figure] [caption], etc.

Bicyclo ring system having the five-membered hetero ring as one of the cyclos:
This subclass is indented under subclass 410. Subject matter wherein the polycyclo ring system consists of exactly two cyclos, e.g., [figure] [caption], etc.

Ring nitrogen is shared by the cyclos of the bicyclo ring system:
This subclass is indented under subclass 412. Subject matter wherein the ring nitrogen of the five-membered hetero ring is additionally a ring member of the other cyclo of the bicyclo ring system, e.g.,

Additional hetero ring which is not part of the bicyclo ring system:
This subclass is indented under subclass 412. Subject matter which contains an additional hetero ring, e.g., [figure] [caption], etc.

The bicyclo ring system consists of the five-membered hetero ring and a benzene ring (e.g., indole, etc.):
This subclass is indented under subclass 412. Subject matter wherein the five-membered hetero ring and a benzene ring are the cyclos of the bicyclo ring system, e.g., indole, indoline, etc.

The ring nitrogen is bonded directly to nonshared ring carbons of the five-membered hetero ring (e.g., isoindole, etc.):
This subclass is indented under subclass 415. Subject matter wherein the ring nitrogen is bonded directly to the two nonshared ring carbons of the five-membered hetero ring, e.g., [figure] [figure] [caption], etc.

Plural chalcogens bonded directly to ring carbons of the five-membered hetero ring (e.g., phthalimide, etc.):
This subclass is indented under subclass 416. Subject matter wherein at least two chalcogens are bonded directly to ring carbons of the five-membered hetero ring, e.g., phthalimide, etc.

Chalcogen bonded directly to ring carbon of the five-membered hetero ring:
This subclass is indented under subclass 415. Subject matter wherein chalcogen is bonded directly to ring carbon of the five-membered.

C=X bonded directly or indirectly by an acyclic carbon or carbon chain to ring carbon of the five-membered hetero ring (e.g., trytophan, etc.) (X is chalcogen):
This subclass is indented under subclass 415. Subject matter wherein a C=X group (X is Chalcogen) is bonded directly or indirectly to a ring carbon of the five-membered hetero ring by an acyclic carbon or carbon chain, e.g., [figure] [caption], etc.

Indomethacin, per se, or ester thereof:
This subclass is indented under subclass 419. Subject matter wherein the compound is indomethacin, i.e., as illustrated below, or ester of the carboxyl group thereof. [figure]

Chalcogen bonded directly to ring carbon of the five-membered hetero ring (e.g., adrenochrome, etc.):
This subclass is indented under subclass 412. Subject matter wherein chalcogen is bonded directly to ring carbon of the five-membered hetero ring, e.g., [figure] [caption], etc.

Additional hetero ring:
This subclass is indented under subclass 408. Subject matter which contains an additional hetero ring, e.g., [figure] [figure] [caption], etc.

C=X bonded directly to the five-membered hetero ring by nonionic bonding (X is chalcogen):
This subclass is indented under subclass 408. Subject matter wherein C=X (X is chalcogen) is bonded directly to the five-membered hetero ring by nonionic bonding.

Chalcogen bonded directly to the five-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 408. Subject matter wherein chalcogen is bonded directly to the five-membered hetero ring by nonionic bonding.

Plural chalcogens bonded directly to the five-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 424. Subject matter wherein at least two chalcogens are bonded directly to the five-membered hetero ring by nonionic bonding.

Nitrogen bonded directly to the five-membered hetero ring by nonionic bonding:
This subclass is indented under subclass 408. Subject matter wherein nitrogen is bonded directly to the five-membered hetero ring by nonionic bonding.

Two double bonds between ring members of the five-membered hetero ring (e.g., pyrrole, etc.):
This subclass is indented under subclass 408. Subject matter which contains two double bonds between ring members of the five-membered hetero ring, e.g., pyrrole, etc.

Chalcogen bonded indirectly to the five-membered hetero ring by acyclic nonionic bonding:
This subclass is indented under subclass 408. Subject matter wherein chalcogen is bonded indirectly to the five-membered hetero ring by acyclic nonionic bonding, e.g., [figure] [figure] [caption], etc.

Carbocyclic ring bonded directly to the five-membered hetero ring:
This subclass is indented under subclass 408. Subject matter wherein a carbocyclic ring is bonded directly to the five-membered hetero ring.

Sulfur containing hetero ring:
This subclass is indented under subclass 183. Subject matter wherein the hetero ring has sulfur as a ring hetero atom.
(1) Note. Inner sulfonium salts, even when represented in cyclic form are excluded herefrom.

The hetero ring has at least seven members:
This subclass is indented under subclass 430. Subject matter wherein the hetero ring has at least seven members.

The hetero ring is six-membered:
This subclass is indented under subclass 430. Subject matter wherein the hetero ring is six-membered.

Plural hetero atoms in the hetero ring:
This subclass is indented under subclass 432. Subject matter wherein the hetero ring contains at least one ring hetero atom in addition to the ring sulfur.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 433. Subject matter wherein the hetero ring is one of the cyclos of a polycyclo ring system.

Three or more ring hetero atoms in the hetero ring:
This subclass is indented under subclass 433. Subject matter wherein the six-membered hetero ring contains at least two ring hetero atoms in addition to the ring sulfur.

Two ring sulfurs in the hetero ring:
This subclass is indented under subclass 433. Subject matter wherein the six-membered hetero ring contains at least two ring hetero atoms in addition to the ring sulfur.

Tricyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 432. Subject matter wherein the hetero ring is one of the cyclos of a polycyclo ring system consisting of exactly three cyclos.

The hetero ring is five-membered:
This subclass is indented under subclass 430. Subject matter wherein the hetero ring is five-membered.

Plural hetero atoms in the hetero ring:
This subclass is indented under subclass 438. Subject matter wherein the hetero ring has at least one ring hetero atom in addition to the ring sulfur.

Only two ring sulfurs in the hetero ring:
This subclass is indented under subclass 439. Subject matter wherein the hetero ring contains exactly two ring sulfurs as the only hetero atoms present.

Chalcogen bonded directly to ring carbon of the hetero ring:
This subclass is indented under subclass 440. Subject matter wherein chalcogen is bonded directly to ring carbon of the hetero ring.

Nitrogen bonded directly to the hetero ring by nonionic bonding:
This subclass is indented under subclass 440. Subject matter wherein nitrogen is bonded directly to the hetero ring by nonionic bonding.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 438. Subject matter wherein the five-membered sulfur containing hetero ring is one of the cyclos of a polycyclo ring system.

Additional hetero ring:
This subclass is indented under subclass 438. Subject matter
wherein an additional hetero ring is present.
(1) Note. Examples of compounds Provided for herein are: [figure] [figure] [caption], etc.

Chalcogen bonded directly to ring carbon of the hetero ring:
This subclass is indented under subclass 438. Subject matter wherein chalcogen is bonded directly to ring carbon of the hetero ring.

Chalcogen bonded directly to ring sulfur by nonionic bonding:
This subclass is indented under subclass 438. Subject matter wherein chalcogen is bonded directly to ring sulfur of the hetero ring.

Nitrogen bonded directly to the hetero ring:
This subclass is indented under subclass 438. Subject matter wherein nitrogen is bonded directly to the hetero ring.
(1) Note. An example of a compound within this definition: [figure]

C=X bonded directly to the hetero ring (X is chalcogen):
This subclass is indented under subclass 438. Subject matter wherein C=X (X is chalcogen) is bonded directly to the hetero ring.

Oxygen containing hetero ring:
This subclass is indented under subclass 183. Subject matter wherein the hetero ring contains a ring oxygen.

The hetero ring has at least seven members:
This subclass is indented under subclass 449. Subject matter wherein the hetero ring has seven or more members.

The hetero ring is six-membered:
This subclass is indented under subclass 449. Subject matter wherein the hetero ring is six-membered.

Plural ring oxygens in the hetero ring:
This subclass is indented under subclass 451. Subject matter wherein the six-membered hetero ring contains at least two ring oxygens.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 451. Subject matter wherein the six-membered hetero ring is one of the cyclos of a polycyclo ring system.

Tricyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 453. Subject matter wherein the polycyclo ring system consists of exactly three cyclos.

Chalcogen bonded directly to ring carbon of the hetero ring:
This subclass is indented under subclass 454. Subject matter
wherein chalcogen is bonded directly to ring carbon of the hetero ring.

Bicyclo ring system having the hetero ring as one of the cyclos (e.g., chromones, etc.):
This subclass is indented under subclass 453. Subject matter wherein the polycyclo ring system consists of exactly two cyclos.

Coumarins (including hydrogenated):
This subclass is indented under subclass 456. Subject matter wherein the bicyclo ring system has the following structure, as illustrated below, or hydrogenated form thereof. [figure]

Tocopherols (e.g., vitamin E, etc.):
This subclass is indented under subclass 456. Subject matter wherein the bicyclo ring system includes the following structure, in the first illustration below, or ether, ester of the hydroxyl group thereof, e.g., as shown in the second illustration below. [figure] [figure] [caption], etc.
(1) Note. The several tocopherols differ by methyl substitution on the benzo ring.

Nitrogen containing:
This subclass is indented under subclass 451. Subject matter which contains nitrogen.

Chalcogen bonded directly to ring carbon of the hetero ring:
This subclass is indented under subclass 451. Subject matter wherein chalcogen is bonded directly to ring carbon of the hetero ring.

The hetero ring is five-membered:
This subclass is indented under subclass 449. Subject matter wherein the hetero ring is five-membered.

Spiro ring system:
This subclass is indented under subclass 461. Subject matter which contains a spiro ring system, e.g., [figure] [figure] [caption], etc.
(1) Note. See section IV, Glossary, for the definition of "spiro ring system."

Plural ring oxygens in the hetero ring:
This subclass is indented under subclass 461. Subject matter wherein the five-membered hetero ring contains at least two ring oxygens.

Bicyclo ring system having the hetero ring as one of the cyclos (e.g., methylenedioxyphenyl group, etc.):
This subclass is indented under subclass 463. Subject matter wherein the hetero ring is one of the cyclos of a bicyclo ring system, e.g., [figure] [caption], etc.

The hetero ring is substituted:
This subclass is indented under subclass 464. Subject matter wherein the hetero ring contains substituents other than hydrogen.

Nitrogen containing:
This subclass is indented under subclass 464. Subject matter which contains nitrogen, e.g., [figure] [caption], etc.

Only two ring oxygens in the hetero ring which is not a polycyclo ring system (e.g., dioxolane, etc.):
This subclass is indented under subclass 463. Subject matter wherein the hetero ring contains only two oxygens as ring hetero atoms and is not a cyclo of a polycyclo ring system.

Polycyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 461. Subject matter wherein the five-membered hetero ring is one of the cyclos of a polycyclo ring system.

Bicyclo ring system having the hetero ring as one of the cyclos:
This subclass is indented under subclass 468. Subject matter wherein the polycyclo ring system consists of exactly two cyclos.

Chalcogen or nitrogen bonded directly to the hetero ring:
This subclass is indented under subclass 469. Subject matter wherein chalcogen or nitrogen is bonded directly to the hetero ring.

Nitrogen containing:
This subclass is indented under subclass 461. Subject matter which contains nitrogen.

The nitrogen bonded directly to the hetero ring:
This subclass is indented under subclass 471. Subject matter wherein the nitrogen is bonded directly to the hetero ring.

Chalcogen bonded directly to the hetero ring:
This subclass is indented under subclass 461. Subject matter wherein chalcogen is bonded directly to the hetero ring.

Ascorbic acid or derivative (e.g., vitamin c, etc.):
This subclass is indented under subclass 473. Subject matter which has the following structure, as illustrated below, or derivative thereof. [figure]
(1) Note. A derivative of ascorbic acid includes the replacement of hydroxyl hydrogen with acyl, alkyl or metal to give the ester, ether or alcoholate of a metal.

The hetero ring is three-membered:
This subclass is indented under subclass 449. Subject matter wherein the oxygen containing hetero ring is three-membered.

N-C (=X) X containing (X is chalcogen) DOAI:
This subclass is indented under subclass 1. Subject matter wherein the DOAI contains the grouping NX wherein X is chalcogen, e.g., H[subscrpt]2[end subscrpt]NOH etc.

N-C (=X)-X-N containing:
This subclass is indented under subclass 476. Subject matter wherein the active ingredient contains the grouping NXN wherein X is chalcogen, e.g., R[subscrpt]2[end subscrpt]-NS-NH[subscrpt]2[end subscrpt], etc.

N-C (=X)-X-C containing:
This subclass is indented under subclass 476. Subject matter in which the active ingredient is an ester of carbamic acid, i.e., H-XN (X is chalcogen) and which contains the NX-C group, e.g., [figure] [caption], etc.

With an additional active ingredient:
This subclass is indented under subclass 478. Subject matter which contains a compound having the grouping, as shown below, and an additional organic active ingredient. [figure]
(1) Note. Synergistic and potentiating agents are considered active ingredients.

Polycyclo ring system attached by nonionic bonding:
This subclass is indented under subclass 478. Subject matter wherein the compound contains a polycyclo ring system, e.g., [figure] [caption], etc.
(1) Note. Compounds wherein the polycyclo system is ionically bonded to the moiety containing the grouping, as shown below, are excluded from this subclass. [figure]

Naphthyl ring system:
This subclass is indented under subclass 480. Subject matter wherein the compound contains a naphthyl ring system, e.g., [figure] [caption], etc.

N-C(=X)-N, N-C (=N)N, N-N, nitrogen directly bonded to oxygen by nonionic bonding or cyano containing:
This subclass is indented under subclass 478. Subject matter which contains the grouping NN (e.g., ureido);NN, (e.g., guanido); N-N (e.g., hydrazo, etc.), cyano or a nitrogen bonded directly to oxygen by nonionic bonding.
(1) Note. This subclass contains, for example, [figure] [caption], etc.

Plural N-C(=X)-X groups:
This subclass is indented under subclass 478. Subject matter wherein the organic ingredient contains plural NX groups, e.g., [figure] [caption], etc.

Ring in acid moiety:
This subclass is indented under subclass 478. Subject matter wherein the organic active ingredient has a ring in the acid moiety, e.g., [figure] [caption], etc.

The ring is a benzene ring:
This subclass is indented under subclass 484. Subject matter wherein the ring is a benzene ring.
(1) Note. This subclass contains, e.g., [figure] [caption], etc.

Phenoxy in acid moiety:
This subclass is indented under subclass 485. Subject matter wherein the benzene ring is a part of a phenoxy group, e.g., [figure] [caption], etc.

The benzene ring attached to nitrogen through an acyclic carbon or carbon chain:
This subclass is indented under subclass 485. Subject matter wherein the benzene ring is attached to the nitrogen of the NXC group through an acyclic carbon or carbon chain.
(1) Note. This subclass contains, e.g., [figure] [caption], etc.

Ring in alcohol moiety:
This subclass is indented under subclass 485. Subject matter wherein the organic active ingredient also contains a ring in the alcohol moiety.
(1) Note. This subclass contains, e.g., [figure] [caption], etc.

Ring in alcohol moiety:
This subclass is indented under subclass 478. Subject matter wherein the active ingredient contains a ring in the alcohol moiety.
(1) Note. This subclass contains, e.g., [figure] [caption], etc.

Ring attached directly to oxygen of N-C(=O)-O:
This subclass is indented under subclass 489. Subject matter wherein the ring is directly attached to the oxygen of the NO.
(1) Note. This subclass contains, e.g., [figure] [caption], etc.

With an additional active ingredient:
This subclass is indented under subclass 476. Subject matter which contains a compound having the grouping NX and an additional organic active ingredient.
(1) Note. Synergistic and potentiating agents are considered active ingredients.

Heavy metal containing DOAI:
This subclass is indented under subclass 1. Subject matter in which the DOAI contains a heavy metal, i.e., a metal whose specific gravity is greater than 4.
(1) Note. Many patents in this and indented subclasses are drawn to compositions containing heavy metal salts of organic compounds.

Tin:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is tin.

Zinc:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is zinc.

Gold or silver:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is gold or silver.

Mercury:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is mercury.

Nitrogen containing:
This subclass is indented under subclass 496. Subject matter in which the heavy metal containing compound also contains a nitrogen atom.

Lead:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is lead.

Copper:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is copper.

With an additional active ingredient:
This subclass is indented under subclass 499. Subject matter which contains a compound which contains copper and also an additional active ingredient.
(1) Note. Synergistic and potentiating agents are considered active ingredients.

Nickel or cobalt:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is nickel or cobalt.

Iron:
This subclass is indented under subclass 492. Subject matter
in which the heavy metal is iron.

Antimony or bismuth:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is antimony or bismuth.

Arsenic:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is arsenic.

Cadmium or chromium:
This subclass is indented under subclass 492. Subject matter in which the heavy metal is cadmium or chromium.

Ester DOAI:
This subclass is indented under subclass 1. Subject matter wherein the DOAI is identical in structure with a compound formed by replacing the hydroxyl of an alcohol or phenol by an acid radical.

R-C(=X)-N-X-C containing (e.g., hydroxamic acid ester, etc.) (R is C or H and X is chalcogen):
This subclass is indented under subclass 506. Subject matter in which the ester contains the following group: RNXC, wherein R is carbon or hydrogen and X is chalcogen (e.g., hydroxamic acid ester, etc.).
(1) Note. This subclass contains for example: [figure] [figure] [caption], etc.

X-C=N containing (e.g., imidoester, etc.) (X is chalcogen):
This subclass is indented under subclass 506. Subject matter in which the ester contains the following group: X-C=N wherein X is chalcogen (e.g., imidoester, etc.).
(1) Note. This subclass contains for example: [figure] [figure] [caption], etc.

(O=)N(=O)-O-C containing (e.g., nitrate ester, etc.):
This subclass is indented under subclass 506. Subject matter wherein the ester contains the group (O=)N(=O)-O-C.
(1) Note. This subclass contains for example: [figure] [caption], etc.

Polycyclo ring system:
This subclass is indented under subclass 506. Subject matter wherein the ester contains a polycyclo ring system in either the alcohol or acid portion of the molecule.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Two of the cyclos share at least three ring members (i.e., bridged):
This subclass is indented under subclass 510. Subject matter wherein the ester contains at least one bridged ring system in either the alcohol or acid portion of the molecule.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

X-C(=X)-X containing (e.g., carbonic acid ester, thiocarbonic acid ester, etc.) (X is chalcogen):
This subclass is indented under subclass 506. Subject matter wherein the ester contains the group XX, wherein X is chalcogen.
(1) Note. This subclass contains, for example: [figure] [figure] [figure] [caption], etc.

C-C(=X)-X-C containing (X is chalcogen and at least one X is other than oxygen):
This subclass is indented under subclass 506. Subject matter wherein the ester contains the group group CXC wherein X is chalcogen and at least one is other than oxygen.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Carbon bonded to -NCX (e.g., cyanate, thiocyanate or isothiocyanate, etc.) (X is chalcogen):
This subclass is indented under subclass 506. Subject matter wherein the organic action ingredient contains a carbon which is directly bonded to -NCX or -XCN.
(1) Note. This subclass contains, for example: [figure] [figure] [caption], etc.

With an additional active ingredient:
This subclass is indented under subclass 514. Subject matter wherein the organic active ingredient contains a compound having the group -CNX or -XCN and an additional organic active ingredient.
(1) Note. Synergistic and potentiating agents are considered active ingredients.
(2) Note. The starting solid polymer may be subjected to a number of aftertreating steps the sequence or numbers of which will not affect classification. The important criteria is that every reaction be considered proceeding from the starting solid polymer to the final product. This is consistent with the classification rules set out in the Class 520 Series.

Containing plural -NCX or -XCN groups or a cyano:
This subclass is indented under subclass 514. Subject matter in which the organic active ingredient contains plural -NCX or -XCN groups or a separate cyano group which is not a part of the -NCX or -XCN group.
(1) Note. This subclass contains, for example: [figure] [figure] [caption], etc.

S-X-C containing (e.g., sulfates, etc.) (S is chalcogen):
This subclass is indented under subclass 506. Subject matter wherein the ester is derived from a sulfur oxygen acid function of the formula RSOH, RXH, plus see the illustrations below: [figure] [figure] [caption] or [figure]
(1) Note. This subclass contains, for example: [figure] [figure] [figure] [caption], etc.

S of S-X-C attached directly to a benzene ring:
This subclass is indented under subclass 517. Subject matter wherein the sulfur atom of the S-X-C is directly attached to a benzene ring.
(1) Note. This subclass contains for example: [figure] [caption], etc.

Cyano or isocyano bonded directly to carbon:
This subclass is indented under subclass 506. Subject matter wherein the ester is the -C b N (cyano) or the -[supscrpt]+ [end supscrpt]b C (isocyano also written as -N = C group) attached to a carbon.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Benzene ring containing:
This subclass is indented under subclass 303. Subject matter in which the cyano or isocyano containing compound also contains a benzene ring.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

C=O other than as ketone or aldehyde:
This subclass is indented under subclass 520. Subject matter in which the cyano or isocyano and benzene ring containing compound also contains a C=D (carbonyl) other than as a ketone or aldehyde.
(1) Note. This subclass contains, for examples: [figure] [caption], etc.

The cyano is bonded directly to a benzene ring:
This subclass is indented under subclass 521. Subject matter wherein the cyano group is bonded directly to a benzene ring.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Additional nitrogen other than cyano:
This subclass is indented under subclass 520. Subject matter wherein the cyano and benzene containing compound also contains an additional nitrogen other than as in a cyano or isocyano grouping.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

The cyano is bonded directly to a benzene ring:
This subclass is indented under subclass 523. Subject matter wherein a cyano group is bonded directly to a benzene ring.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Two or more of the cyano groups:
This subclass is indented under subclass 520. Subject matter wherein the compound contains a benzene ring and at least two cyano groups.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Acyclic:
This subclass is indented under subclass 519. Subject matter wherein the cyano containing compound is acyclic.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

C=O other than as ketone or aldehyde:
This subclass is indented under subclass 526. Subject matter wherein the acyclic cyano containing compound contains a C=O (carbonyl) other than as ketone or aldehyde.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

C(=O)N containing:
This subclass is indented under subclass 527. Subject matter wherein the carbonyl group is present in the form of a carboxamide grouping, [figure]
(1) Note. This subclass contains, for example: [figure]
[caption], etc.

Z-C(=O)-O-Y wherein Z is hydrogen or an organic radical bonded to the C(=O) by a carbon and Y is an organic radical bonded to the oxygen by a carbon:
This subclass is indented under subclass 506. Subject matter wherein the ester is derived from a carboxylic acid of the formula ZO-Y wherein the Z and Y are organic radicals directly bonded by carbon atoms or Z is a hydrogen atom.
(1) Note. This subclass contains, for example: [figure] [caption], etc.
(2) Note. A compound which contains plural radicals, is proper for the subclass hereunder if the Z (or Y) of any one of the radicals meets the requirements for Z (or Y) in the subclass.

Z contains a cyclopentyl or cyclopentene ring:
This subclass is indented under subclass 529. Subject matter wherein the Z is or contains a cyclopentyl or cyclopentene moiety.
(1) Note. This subclass contains, for example: [figure] [figure] [caption], etc.

Z contains a cyclopropyl or cyclopropene ring:
This subclass is indented under subclass 529. Subject matter wherein Z is or contains a cyclopropyl or cyclopropene moiety.
(1) Note. This subclass contains for example: [figure] [figure] [caption], etc.
(2) Note. A Compound which contains plural ZO-Y radicals is proper for the subclasses hereunder if the A (or Y) of any of the radicals meets the requirements for Z (or Y) in the subclass.

Z-C(=O)-O-Y, wherein Z contains a benzene ring:
This subclass is indented under subclass 529. Subject matter wherein Z is or contains a benzene ring.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

Compound contains two or more C(=O)O groups indirectly bonded together by only covalent bonds:
This subclass is indented under subclass 532. Subject matter wherein the ester contains two of more O- groups.
(1) Note. This subclass contains, for example: [figure] [figure] [caption], etc.
(2) Note. Exclude if formed because of ionic bonding, e.g., [figure] [caption], etc.

Z or Y radical contains a nitrogen atom:
This subclass is indented under subclass 532. Subject matter wherein the Z or Y radical contains a nitrogen atom.
(1) Note. The subclass contains, for example: [figure] [caption], etc.

The nitrogen of the Z radical is directly bonded to a benzene ring which is directly bonded to the C(=O) group:
This subclass is indented under subclass 534. Subject matter wherein the nitrogen of the Z radical is directly attached to a benzene ring which is directly attached to the C=O of the C(=O) -OY grouping.
(1) Note. This subclass contains, for example: [figure] [caption], etc.

With an agent to enhance topical adsorption or with a
stabilizing agent:
This subclass is indented under subclass 535. Subject matter wherein the composition includes an agent which acts as a stabilizer for the active ingredient therein or acts to enhance the topical absorption thereof.
(1) Note. To be included herein the agent must be disclosed to have one of said functions.