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CLASS 558,	ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
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SECTION I - CLASS DEFINITION

Class 558, Organic Compounds. In this series of classes, Class 558 is to be considered as an integral part of Class 260 (after class 556) and follows the schedule hierarchy, retaining all pertinent definitions and class lines of Class 260.

SUBCLASSES

1	Thioimidate esters (i.e., compounds having the thioimidate group, HN=CH-S-, wherein substitution may be made for hydrogen only, bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... wherein the thiomidate group, HN=CH-S-, in which substitution may be made for hydrogen only, is bonded direcctly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. Examples of compounds provided for herein are: SEE OR SEARCH CLASS: 588,  Hazardous or Toxic Waste Destruction or Containment,   subclasses 408 and 409 for the chemical destruction of organic hazardous or toxic waste containing chalcogens or nitrogen.

2	Chalcogen bonded directly to the carbon of the thioimidate group (e.g., HN=C(OH)-S-, wherein substitution may be made for hydrogen only)
	This subclass is indented under subclass 1.  Compounds wherin the carbon of the thioimidate group is bonded directly to chalcogen (i.e., oxygen, sulfur, selenlum, or tellurium). (1) Note. Examples of compounds provided for herein are:

3	Oxygen attached directly to the nitrogen of the thioimidate group by nonionic bonding (i.e., HO-N=CH-S-, wherein substitution may be hydrogen only)
	This subclass is indented under subclass 1.  Compounds wherein the nitrogen of the thioimidate group is attached directly to oxygen by nonionic bonding. (1) Note. An example of a compound provided for herein is:

4	Nitrogen bonded directly to the carbon of the thioimidate group (i.e., pseudothioureas, HN=C(HNH)-S-, wherein substitution may be made for hydrogen only)
	Compounds under subclass wherein the carbon of the thiomidate group is bonded directly to nitrogen. (1) Note. Examples of compounds provided for herein are:

5	Chalcogen attached indirectly to the thioimidate group by acyclic nonionic bonding
	This subclass is indented under subclass 4.  Compounds wherein the thioimidate group is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

6	Imidate esters (i.e., compounds having the imidate group, HN=CH-O-, wherein substitution may be made for hydrogen only, bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... wherein the imidate group, HN=CH-O, in which substitution may be made for hydrogen only, is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. Examples of compounds provided for herein are: SEE OR SEARCH CLASS: 588,  Hazardous or Toxic Waste Destruction or Containment,   subclasses 406 , 408 and 409 for the chemical destruction of organic hazardous or toxic waste containing halogen, chalcogen, or nitrogen.

7	Oxygen attached directly to the nitrogen of the imidate group by nonionic bonding (i.e., HO-N=CH-O-, wherein substitution may be made for hydrogen only)
	Compounds under subcclass 6 wherein the nitrogen of the imidate group is attached directly to oxygen by nonionic bonding. (1) Note. An example of a compound provided for herein is:

8	Nitrogen bonded directly to the carbon of the imidate group (i.e., pseudoureas, HN=C(HNH)-O-, wherein substitution may be made for hydrogen only)
	This subclass is indented under subclass 6.  Compounds wherein the carbon of the imidate group is bonded directly to nitrogen. (1) Note. Examples of compounds provided for herein are:

9	Carbon bonded directly to the nitrogen of the imidate group (e.g., N cyanoimidates, etc.)
	This subclass is indented under subclass 6.  Compounds wherein the nitrogen of the imidate group is bonded directly to carbon. (1) Note. Examples of compounds provided for herein are:

10	Thiocyanate esters (i.e., compounds having the thiocyano group, -SCN, bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... wherein the thiocyano group, -S-C=N, is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. An example of a compound provided for herein is: SEE OR SEARCH CLASS: 588,  Hazardous or Toxic Waste Destruction or Containment,   subclasses 406 , 408 and 409 for the chemical destruction of organic hazardous or toxic waste containing halogen, chalcogen, or nitrogen.

11	Plural thiocyano groups attached to each other indirectly by nonionic bonding
	Compounds under 10 in which plural thiocyano groups are attached indirectly to each other by nonionic bonding. (1) Note. An example of a compound provided for herein is:

12	Thiocyano and the carbonyl carbon of a -COO- group are attached to the same carbon or to a chain consisting of carbons, which chain may include ring members (e.g., terpene thiocyanoacyl compounds, etc.)
	This subclass is indented under subclass 10.  Compounds wherein the carbonyl carbon of a -C(=0)0- group and the thiocyano group are attached to the same carbon or to a chain consisting off carbons, which chain may include ring members. (1) Note. Examples of compounds provided for herein are:

13	Thiocyano bonded directly to a benzene ring
	This subclass is indented under subclass 10.  Compounds wherein a benzene ring is bonded directly to the thiocyano group. (1) Note. An example of a compound provided for herein is:

14	Nitrogen or carbonyl attached indirectly to the thiocyano group by acyclic nonionic bonding
	This subclass is indented under subclass 10.  Compounds wherein the thiocyano group is attached indirectly to nitrogen or carbony1, -C(=0)-, by acyclic nonlonic bonding. (1) Note. Example of compounds provided for herein are:

15	Sulfur or halogen attached indirectly to the thiocyano group by acyclic nonionic bonding
	This subclass is indented under subclass 10.  Compounds wherein the thiocyano group is attached indirectly to sulfur or halogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

16	Oxygen attached indirectly to the thiocyano group by acyclic nonionic bonding
	This subclass is indented under subclass 10.  Compounds wherein the thiocyano group is attached indirectly to oxygen by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

17	Isothiocyanate esters (i.e., compounds containing the isothiocyanate group, -N=C=S, bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... wherein the isothiocyanate group, -N=C=S, is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. An example of a compound provided for herein is:

18	Processes for forming the isothiocyanate group
	This subclass is indented under subclass 17.  Processes wherein the isothioicyanate group is formed. (1) Note. An example of a compound provided for herein is:

19	Thiocyano, isocyanate, or isocyanide dihalide group containing compound utilized (i.e., -SCN, -N=C=O, or -N=CXX containing compound utilized wherein X is halogen)
	This subclass is indented under subclass 18.  Processes underr ... in which there is utilized a thiocyano (-S-C=N) compound, an isocyanate (-N=C=O) compound, or an isocyanide dihalide (-N=CXX, wherein X is halogen) compound. (1) Note. Examples of processes provided for herein are:

20	Sulfate esters ( i.e., compounds having the sulfate group, -O-S(=O)(=O)O-, bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compound under Class 532, ... which contain the sulfate group, -0-S(=0)(=0)0- wherein at least one of the single bonded oxygens is bonded directly to carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon. (1) Note. Examples of compounds provided for herein are: SEE OR SEARCH CLASS: 588,  Hazardous or Toxic Waste Destruction or Containment,   subclasses 405 through 409for the chemical destruction of organic hazardous or toxic waste containing halogen, chalcogen, nitrogen, or metals.

21	With preservative or stabilizer
	This subclass is indented under subclass 20.  Products wherein the sulfate ester is mixed with a stabiliizing or preserving agent, whose sole function is to prevent physical or chemical change.

22	Phosphorus attached directly or indirectly to the sulfate group by nonionic bonding
	This subclass is indented under subclass 20.  Compounds in which the sulfate group is attached directly or indirectly to phosphorus by nonionic bonding. (1) Note. An example of a compound provided for herein is:

23	Chalcogen bonded directly to the sulfate group
	This subclass is indented under subclass 20.  Compounds in which the sulfate group is bonded directly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. An example of a compound provided for herein is:

24	Plural sulfate groups attached indirectly to each other by nonionic bonding
	This subclass is indented under subclass 20.  Compounds in which plural sulfate groups are indirectly attached to each other by nonionic bonding. (1) Note. An example of a compound provided for herein is:

25	Nitrogen attached indirectly to a sulfate group by acyclic nonionic bonding
	This subclass is indented under subclass 24.  Compounds wherein a sulfate group is attached indirectly to nitrogen by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

26	Additional chalcogen attached indirectly to a sulfate group by acyclic nonionic bonding
	This subclass is indented under subclass 24.  Compounds wherein one of the sulfate groups is attached indirectly to an additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

27	Quaternary nitrogen containing
	This subclass is indented under subclass 20.  Compounds which contain a quaternary nitrogen. (1) Note. Quaternary nitrogen is pentavalent nitrogen bonded by four valences to carbon, and ionically to an anion for the remaining valence. (2) Note. An example of a compound provided for herein is:

28	Having -C(=X)-, wherein X is chalcogen, attached indirectly to the quaternary nitrogen
	This subclass is indented under subclass 27.  Compounds wherein the quaternary nitrogen is attached indirectly to -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. An example of a compound provided for herein is:

29	Nitrogen attached indirectly to the sulfate group by acyclic nonionic bonding
	This subclass is indented under subclass 20.  Compounds wherein the sulfate group is attached indirectly to nitrogen by acyclic nonionic bonding. (1) Note. Example of compounds provided for herein are:

30	Having -C(=X)-, wherein X is chalcogen, bonded directly to the nitrogen
	This subclass is indented under subclass 29.  Compounds wherein the nitrogen is bonded directly to -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

31	Chalcogen attached indirectly to the sulfate group by acyclic nonionic bonding
	This subclass is indented under subclass 20.  Compounds wherein the sulfate group is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium or tellurium) by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

32	The chalcogen, X, is part of a -C(=X)- group
	This subclass is indented under subclass 31.  Compounds wherein the chalcogen X is in the following group: -C(=X)-. (1) Note. An example of a compound provided for herein is:

33	The chalcogen is bonded directly to a ring
	This subclass is indented under subclass 31.  Compounds wherein a ring is bonded directly to the chalcogen. (1) Note. An example of a compound provided for herein is:

34	Plural chalcogens attached indirectly to the sulfate group by acyclic nonionic bonding
	This subclass is indented under subclass 31.  Compounds wherein the sulfate group is attached indirectly to plural chalcogens by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

35	Halogen attached indirectly to the sulfate group by acyclic nonionic bonding
	This subclass is indented under subclass 20.  Compounds wherein the sulfate group is attached indirectly to halogen by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

36	Acyclic carbon chain containing carbon to carbon unsaturation attached directly to the sulfate group by nonionic bonding
	This subclass is indented under subclass 20.  Compounds wherein the sulfate group is attached directly to an acyclic carbon chain containing carbon to carbon unsaturation. (1) Note. An example of a compound provided for herein is:

37	Benzene ring attached directly or indirectly to the sulfate group by nonionic bonding
	This subclass is indented under subclass 20.  Compounds wherein the sulfate group is attached directly or indirectly to a benzene ring by nonionic bonding. (1) Note. An example of a compound provided for herein is:

38	Plural alkyl groups, or hydrogen and an alkyl group, bonded directly to the sulfate group, wherein the hydrogen may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal (e.g., ethyl hydrogen sulfate, methyl ammonium sulfate, diethyl sulfate, etc.)
	This subclass is indented under subclass 20.  Compounds wherein the sulfate group is bonded directly to plural alkyl groups, or to hydrogen and an alkyl group, wherein the hydrogen may be replaced by a group 1A or 11A light metal or by substituted or unsubstituted ammonium. (1) Note. Examples of compounds provided for herein are:

39	Processes
	This subclass is indented under subclass 38.  Processes of preparing, purifying, recovering, or any treating of the compound.

40	Heavy metal containing material utilized (e.g., as catalyst, promoter, etc.)
	This subclass is indented under subclass 39.  Processes wherein heavy metal containing material is utilized. (1) Note. The material may be utilized as a catalyst, as a promoter, or in any other way.

41	Reactant contains alcoholic -OH group (wherein H of -OH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 39.  Processes wherein there is employed as a reactant a compound having an alcoholic -OH group (wherein H of the -OH may be replaced by substituted or unsubstituted ammonium, or by a Group 1A or 11A light metal).

42	Reactant contains acyclic or alicyclic carbon to carbon double bond
	This subclass is indented under subclass 39.  Processes wherein a reactant which contains an acyclic or alicyclic carbon to carbon double bond is employed.

43	Purification or recovery
	This subclass is indented under subclass 39.  Processes which include separating the sulfate group containing compound from impurities or from the reaction mixture.

44	Sulfonate esters (i.e., compounds having the sulfonate group, -O-S(=O)(=O) , wherein the single bonded oxygen is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain the sulfonate group, -O-S (=O) (=O)-, wherein carbon is directly bonded to the single bonded oxygen, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. An example of a compound provided for herein is:

45	Phosphorus attached directly or indirectly to the sulfonate group by nonionic bonding
	This subclass is indented under subclass 44.  Compounds wherein the sulfonate group is attached directly or indirectly to phosphorus by nonionic bonding. (1) Note. An example of a compound provided for herein is:

46	Plural sulfonate groups attached indirectly to each other by nonionic bonding
	Compounds under subclasses 44 wherein plural sulfonate groups are attached indirectly to each other by nonionic bonding. (1) Note. An example of a compound provided for herein is:

47	Nitrogen attached directly or indirectly to a sulfonate group by nonionic bonding
	This subclass is indented under subclass 46.  Compounds which a sulfonate group is attached directly or indirectly to nitrogen by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

48	Nitrogen attached directly or indirectly to the sulfonate group by acyclic nonionic bonding
	This subclass is indented under subclass 44.  Compounds wherein the sulfonate group is attached directly or indirectly to nitrogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

49	The nitrogen is bonded directly to -C(=X)-, wherein X is chalcogen
	This subclass is indented under subclass 40.  Compounds in which the nitrogen is bonded directly to -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. Examples of compounds provided for herein are:

50	Additional nitrogen attached directly or indirectly to the -C(=X)- group by acyclic nonionic bonding
	This subclass is indented under subclass 49.  Compounds wherein the -C(=X)- group is attached directly or indirectly to aditional nitrogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

51	Chalcogen attached indirectly to the sulfonate group by acyclic nonionic bonding
	This subclass is indented under subclass 44.  Compounds wherein the sulfonate group is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

52	The chalcogen, X, is in a -C(=X)- group
	This subclass is indented under subclass 51.  Compounds wherein the chalcogen, X is in the following group: (1) Note. An example of a compound provided for herein is:

53	Halogen attached directly or indirectly to the sulfonate group by acyclic nonionic bonding
	This subclass is indented under subclass 44.  Compounds wherein the sulfonate group is attached directly or indirectly to halogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

54	Plural halogens attached indirectly to the sulfonate group by acyclic bonding
	This subclass is indented under subclass 53.  Compounds wherein the sulfonate group is attached indirectly to plural halogens by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

55	Acyclic carbon chain containing carbon to carbon unsaturation attached directly to the sulfonate group by nonionic bonding
	This subclass is indented under subclass 44.  Compounds where the sulfonate group is attached directly to an acyclic carbon chain containing carbon to carbon unsaturation. (1) Note. An example of a compound provided for herein is:

56	Benzene ring bonded directly to the sulfonate group
	This subclass is indented under subclass 44.  Compounds wherein the sulfonate group is bonded directly to a benzene ring. (1) Note. An example of a compound provided for herein is:

57	Alicyclic ring attached directly or indirectly to the sulfonate group by nonionic bonding
	This subclass is indented under subclass 56.  Compounds wherein the sulfonate group is attached directly or indirectly to an alicylic ring by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

58	Additional benzene ring containing
	This subclass is indented under subclass 56.  Compounds which contain an additional benzene ring. (1) Note. Examples of compounds provided for herein are:

59	Sulfite esters (i.e., compounds having the sulfite group, -O-S(=O)O-, bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain the sulfite group, -O-S(=O)O-, wherein at least one of the single bonded oxygens is bonded directly to carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon. (1) Note. An example of a compound provided for herein is:

60	Chalcogen attached indirectly to the sulfite group by acyclic nonionic bonding
	This subclass is indented under subclass 59.  Compounds in which the sulfite group is attached indirectly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

61	Sulfinate esters (i.e., compounds having the sulfinate group, -O-S(=O)-, wherein the single bonded oxygen is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain the sulfinate group, -O-S(=O)-, wherein carbon is bonded directly to the single bonded oxygen, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon. (1) Note. Examples of compounds provided for herein are:

62	Sulfenate esters (i.e., compounds having the sulfenate group, -S-O-, wherein the oxygen is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain the sulfenate group, -S-O-, wherein the oxygen is bonded directly to carbon, which carbonmay be single bonded to any atom, but may be multiple bonded only to carbon. (1) Note. An example of a compound provided for herein is:

70	Phosphorus esters (i.e., compounds having the phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen, and wherein the carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain a phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), and wherein the carbon may be single bonded to any element but may be multiple bonded only to carbon. (1) Note. Among the different phosphorus ester groups classifiable in this and indented subclasses are (see illustration below) wherein the X"s may be the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or tellurium). SEE OR SEARCH CLASS: 588,  Hazardous or Toxic Waste Destruction or Containment,   subclasses 405 through 409for the chemical destruction of organic hazardous or toxic waste containing halogen, chalcogen, nitrogen, phosphorus, or metals.

71	With preservative or stabilizer
	This subclass is indented under subclass 70.  Products which contain a phosphorus ester in admixture with a preservative or stabilizing agent whose sole function is to prevent physical or chemical change.

72	Boron containing
	This subclass is indented under subclass 70.  Compounds which contain boron.

73	The phosphorus is in a ring
	This subclass is indented under subclass 70.  Compounds wherein the phosphorus is part of a ring.

74	Ring phosphorus is shared by two rings
	This subclass is indented under subclass 73.  Compounds wherein the ring phosphorus is shared by two rings. (1) Note. An example of a compound provided for herein is:

75	Phosphorus and nitrogen in the same ring
	This subclass is indented under subclass 74.  Compounds in which one of the rings contains phosphorus and nitrogen. (1) Note. An example of a compound provided for herein is:

76	Additional phosphorus containing ring
	This subclass is indented under subclass 73.  Compounds which contain more than one phosphorus containing ring.

77	Phosphorus, and two chalcogens bonded directly thereto, in the same ring (e.g., cyclic phosphonates, etc.)
	This subclass is indented under subclass 76.  Compounds which contain a phosphorus atom with two chalcogens (i.e., oxygen, sulfur, selenium, or tellurium) bonded directly thereto in the same ring. (1) Note. An example of a compound provided for herein is:

78	Acyclic divalent chalcogen single bonded directly to the ring phosphorus (e.g., cyclic phosphites, etc.)
	This subclass is indented under subclass 77.  Compounds wherein an acyclic divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly to the ring phosphorus. (1) Note. An example of a compound provided for herein is:

79	And divalent chalogen double bonded directly to the ring phosphorus (e.g., cyclic phosphates, etc.)
	This subclass is indented under subclass 78.  Compounds wherein a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is double bonded directly to the ring phosphorus. (1) Note. An example of a compound provided for herein is:

80	And nitrogen in the ring
	This subclass is indented under subclass 73.  Compounds wherein the phosphorus containing ring also contains nitrogen as a ring member. (1) Note. An example of a compound provided for herein is:

81	And chalcogen or carbon in the ring
	This subclass is indented under subclass 80.  Compounds wherein the phosphorus containing ring also contains carbon or chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) as a ring member. (1) Note. Examples of compounds provided for herein are:

82	And carbon and chalcogen in the ring
	This subclass is indented under subclass 73.  Compounds wherein the phosphorus containing ring also contains carbon and chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) as ring members. (1) Note. An example of a compound provided for herein is:

83	Plural chalcogens in the ring
	This subclass is indented under subclass 82.  Compounds wherein the phosphorus containing ring contains at least two ring chalcogens (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. An example of a compound provided for herein is:

84	The ring phosphorus is attached directly to halogen or an acyclic nitrogen by nonionic bonding
	This subclass is indented under subclass 83.  Compounds wherein the ring phosphorus is attached directly to an acyclic nitrogen or to halogen by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

85	Acyclic divalent chalcogen single bonded directly to the ring phosphorus (e.g., cyclic phosphites, etc.)
	This subclass is indented under subclass 83.  Compounds in which an acyclic divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is single bonded directly to the ring phosphorus. (1) Note. An example of a compound provided for herein is:

86	And divalent chalcogen double bonded directly to the ring phosphorus (e.g., cyclic phosphates, etc.)
	This subclass is indented under subclass 85.  Compounds in which a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is double bonded directly to the ring phosphorus. (1) Note. An example of a compound provided for herein is:

87	Processes
	This subclass is indented under subclass 70.  Processes for the preparation of phosphorus ester compounds or for the treatment of these compounds. SEE OR SEARCH THIS CLASS, SUBCLASS: 146, for processes of purification or recovery of phosphorus esters.

88	Isomerization
	This subclass is indented under subclass 87.  Processes wherein there occurs transformation or rearrangement of the elements of a starting compound without the addition or removal of any elements.

89	Forming the phosphorus ester group
	This subclass is indented under subclass 87.  Processes in which a phosphorus ester group is formed. (1) Note. See this class, subclass 70 for the definition of a phosphorus ester group and for the structure of the different phosphorus ester groups.

90	Reactant having halogen attached directly to phosphorus by nonionic bonding
	This subclass is indented under subclass 89.  Processes wherein a reactant contains halogen attached directly to phosphorus by nonionic bonding.

91	And reactant having chalcogen-containing hetero ring
	This subclass is indented under subclass 90.  Processes wherein an additional reactant contains a chalcogen containing hetero ring, wherein chalcogen is oxygen, sulfur, selenium, or tellurium.

92	And reactant having alcoholic or phenolic -XH group, wherein X is chalcogen (and wherein H of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 90.  Processes wherein an additional reactant contains a chalcogen containing hetero ring, wherein chalcogen is oxygen, sulfur, selenium, or tellurium.

93	And nitrogen bonded directly to the phosphorus in the phosphorus containing reactant
	This subclass is indented under subclass 92.  Processes in which the phosphorus in the phosphorus containing reactant is attached directly to four or five halagens by nonionic bonding.

94	Four or five halogens attached directly to the phosphorus in the phosphorus containing reactant by nonionic bonding
	This subclass is indented under subclass 92.  Processes in which the phosphorus in the phosphorus containing reactant is trivalent.

95	The phosphorus in the reactant is trivalent
	This subclass is indented under subclass 92.  Processes in which the phosphorus in the phosphorus containing reactant is trivalent.

96	Nitrogen containing compound utilized (e.g., pyridine, carbamates, urea, etc., utilized as catalysts, proton acceptors, etc.)
	This subclass is indented under subclass 95.  Processes in which a nitrogen containing compound is utilized. (1) Note. The nitrogen containing compound con be present as a catalyst, a proton acceptor, etc.

97	Trivalent phosphorus converted into pentavalent phosphorus
	This subclass is indented under subclass 95.  Processes wherein the trivalent phosphorus in converted into a pentavalent phosphorus. (1) Note. This subclass provides for processes wherein the phosphorusis oxidized from a trivalent state to a pentavalent state and a phosphorus ester group is formed.

98	And carbon bonded directly to the phosphorus in the phosphorus containing reactant (e.g., methyl phosphonodichloride, etc.)
	This subclass is indented under subclass 92.  Processes in which the phosphorus in the posphorus containing reactant contains carbon bonded to phosphorus.

99	And divalent chalcogen single bonded directly to the phosphorus in the phosphorus containing reactant (e.g., diethyl phosphorochloridate, etc.)
	This subclass is indented under subclass 92.  Processes in which the phosphorus in the phosphorus containing reactant containing divalent chalcogen (i.e., oxygen, sulfur, selenium, or telurium) single bonded directly to phosphorus.

100	Nitrogen containing compound utilized (e.g., pyridine, carbamates, urea, etc., utilized as catalysts, proton acceptors, etc.)
	This subclass is indented under subclass 99.  Processes wherein a nitrogen containing compound is utilized. (1) Note. The nitrogen containing compound can be present as a catalyst, proton acceptor, etc.

101	Nitrogen containing compound utilized (e.g., pyridine, carbamates, urea, etc., utilized as catalysts, proton acceptors, etc.)
	This subclass is indented under subclass 92.  Processes in which a nitrogen containing compound is utilized. (1) Note. The nitrogen containing compound can be present as a catalyst, promoter, proton acceptor, etc.

102	Metal containing material utilized (e.g., as catalysts, etc.)
	This subclass is indented under subclass 92.  Processes in which a metal containing material is utilized.

103	And reactant having -C(=X)-, wherein X is chalcogen
	This subclass is indented under subclass 90.  Processes wherein an additional reactant contains a -C(=X)- group. wherein X is chalcocgen (i.e., oxygen, sulfur, selenium, or tellurium).

104	Reactant has -XH, wherein X is chalcogen, bonded directly to phosphorus (wherein H of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 89.  Processes in which phos- phorus in a phosphorus containing reactant is bonded directly to an -XH group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and wherein H of the -XH group may be replaced by substituted or unsubstituted ammonium, or by a Group IA or Group IIA light metal.

105	And reactant having three-membered hetero ring
	This subclass is indented under subclass 104.  Processes wherein an additional reactant includes a three-membered hetero ring.

106	And reactant having halogen bonded directly to carbon, which carbon may be single bonded to any element but may be multiple bonded only to carbon
	This subclass is indented under subclass 104.  Processes wherein an additional reactant contains halogen bonded directly to carbon, which carbon may be single bonded to any element, but may be multiple bonded only to carbon.

107	Having -C(=X)-, wherein X is chalcogen, or cyano attached indirectly to the halogen by acyclic nonionic bonding
	This subclass is indented under subclass 106.  Processes in which cyano or -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), is attached indurectly to the halogen by acyclic nonionic bonding.

108	And -C(=X)- containing reactant, wherein X is chalcogen
	This subclass is indented under subclass 104.  Processes wherein an additional reactant contains -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

109	And unsaturated hydrocarbon reactant (e.g., pinene, allylene, etc.)
	This subclass is indented under subclass 104.  Processes in which an additional reactant is an unsatruated hydrocarbon.

110	And reactant having alcoholic or phenolic -XH group, wherein X is chalcogen (and wherein H of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 104.  Processes wherein an additional reactant includes an alcoholic or phenolic -XH group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and wherein H of the -XH group may be replaced by substituted or unsubstituted ammonium, or by a Group 1A or Group 11A light metal.

111	Additional diverse phosphorus containing reactant
	This subclass is indented under subclass 104.  Processes in which an additional reactant is a diverse phosphorus containing compound.

112	Reactant consists of phosphorus and sulfur (e.g., phosphorus pentasulfide, etc.)
	This subclass is indented under subclass 89.  Processes in which a reactant contains only phosphorus and sulfur.

113	Reactant consists of phosphorus and oxygen (e.g., phosphorus pentoxide, etc.)
	This subclass is indented under subclass 89.  Processes in which a reactant contains only phosphorus and oxygen.

114	And reactant having alcoholic or phenolic -XH group, wherein X is chalcogen (and wherein H of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 113.  Processes in which an additional reactant includes an alcoholic or phenolic -XH group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellrium) and wherein H of the -XH group may be replaced by substituted or unsubstituted ammonium, or by a Group 1A or 11A light metal.

115	Trivalent phosphorus converted into pentavalent phosphorus
	This subclass is indented under subclass 89.  Processes in which a trivalent phosphorus is converted into a pentavalent phosphorus.

116	Reactant having halogen and -C(=X)-, wherein X is chalcogen, bonded directly to the same carbon (e.g., alpha halo carbonyl compounds, etc.)
	This subclass is indented under subclass 115.  Processes in which a reactant contains halogen and -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), bonded directly to the same carbon. (1) Note. This subclass provides for processes which include Perkow-type reactions wherein an alpha - halo coabonyl compound is utilized as reactant. (2) Note. An example of a process provided for herein is:

117	Reactant is a phosphorus ester (e.g., transesterification, etc.)
	This subclass is indented under subclass 89.  Processes in which a phosphorus ester is a reactant. (1) Note. This subclass provides for transesterification processes wherein one, or more, of the ester groups in a phosphorus ester compound is replaced by another ester group.

118	And reactant having alcoholic or phenolic -XH group, wherein X is chalcogen (and wherein X of -XH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 117.  Processes in which an additional reactant contains an alcoholic or a phenolic -XH group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and wherein the H of the -XH group may be replaced by substituted or unsubstituted ammonium, or by a Group IA or Group IIA light metal.

119	The -XH is bonded directly to alkyl
	This subclass is indented under subclass 118.  Processes in which an alkyl group is bonded directly to the -XH group.

120	The phosphorus ester reactant has hydrogen or metal bonded directly to phosphorus
	This subclass is indented under subclass 117.  Processes in which hydrogen or metal is bonded directely to phosphorus in the phosphorus ester reactant.

121	Elemental phosphorus reactant
	This subclass is indented under subclass 89.  Processes in which elemental phosphorus is a reactant.

122	Trivalent phosphorus converted into pentavalent phosphorus
	This subclass is indented under subclass 87.  Processes in which a trivalent phosphorus is converted into a pentavalent phosphorus.

123	Molecular oxygen or elemental sulfur reactant (e.g., air, etc.)
	This subclass is indented under subclass 122.  Processes in which the reactant is molecular oxygen or elemental sulfur. (1) Note. Air is included herein.

124	Reactant having halogen bonded directly to carbon (e.g., Arbuzov rearrangement, etc.)
	This subclass is indented under subclass 122.  Processes in which a reactant has halogen bonded directly to carbon. (1) Note. This subclass provides for processes which include Arbuzov rearrangement reactions. (2) Note. Examples of compounds provided for herein are:

125	The reactant contains carbon to carbon unsaturation
	This subclass is indented under subclass 124.  Processes in which the reactant contains carbon multiple bonded to another carbon.

126	Reactant having -C(=X)-, wherein X is chalcogen
	This subclass is indented under subclass 122.  Processes in which a reactant contains a -C(=X)-, group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium).

127	Forming a linkage wherein divalent chalcogen is bonded directly to two phosphori (e.g., forming the pyrophosphate linkage, etc.)
	This subclass is indented under subclass 87.  Processes which include joining a direct linkage between a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and each of two phosphori.

128	Reactant having halogen attached directly to phosphorus by nonionic bonding
	This subclass is indented under subclass 127.  Processes in which a reactant contains halogen attached directly to phosphorus by nonionic bonding.

129	Forming or utilizing an -O-O- or -S-S- group
	This subclass is indented under subclass 87.  Processes in which the -0-0- group or the -S-S- group is formed, or processes in which compounds which contain the -O-O- group or the -S-S- group are utilized.

130	Forming P-X-C(=X)- group, wherein the X's may be the same or different chalcogens and the phosphorus may be trivalent or pentavalent
	This subclass is indented under subclass 87.  Processes which include forming the P-X-C(=X)- group, wherein the X"s are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or tellurium), and the phosphorus may be trivalent or pentavalent.

131	Converting a phosphorus ester group to a P-XH group, wherein H of -XH may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal, and wherein X is chalogen and P may be trivalent or pentavalent
	This subclass is indented under subclass 87.  Processes wherein a P-XH group is formed from a phosphorus ester group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), P is trivalent or pentavalent, and H of -XH may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal.

132	Forming phosphorus to chalcogen bond
	This subclass is indented under subclass 87.  Processes wherein a bond is formed between phosphorus and chalcogen (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. Included in this subclass are processes wherein a phosphorus to sulfur bond is replaced by a phosphorus to oxygen bond, etc.

133	Replacing H of P-XH with substituted or unsubstituted ammonium, or with a Group IA or IIA light metal, and wherein X is chalcogen and P is trivalent or pentavalent
	This subclass is indented under subclass 87.  Processes wherein ammounium, substituted ammonium, or a Group IA or IIA light metal replaces the H of a P-XH group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and P is trivalent or pentavalent.

134	Substituting carbon for halogen, hydrogen, or metal bonded directly to the phosphorus
	This subclass is indented under subclass 87.  Processes in which an aldehyde or a ketone is a reactant.

135	Aldehyde or ketone reactant
	This subclass is indented under subclass 134.  Processes wherein a ketone or aldehyde (i.e., RCOR or RCHO) is employed as a reactant.

136	Reactant having halogen bonded directly to carbon (e.g., ethyl bromide, benzoyl chloride, etc.)
	This subclass is indented under subclass 134.  Processes in which a reactant utilized contains halogen bonded directly to carbon.

137	Reactant having acyclic or alicyclic carbon to carbon unsaturation
	This subclass is indented under subclass 134.  Processes in which a reactant contains acyclic or alicyclic carbon to carbon unsaturation.

138	Forming phosphorus to nitrogen bond
	This subclass is indented under subclass 87.  Processes which include forming a phosphorus to nitrogen bond.

139	Forming a -C(=X)NHH or -N=C=O group, wherein X is chalcogen and substitution may be made for hydrogen only
	This subclass is indented under subclass 87.  Processes which include forming the -C(=X)NHH or -N=C=O group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) and substitution may be made for hydrogen only.

140	Forming nonionic phosphorus to halogen bond
	This subclass is indented under subclass 87.  Processes which include forming a nonionic phosphorus to halogen bond.

141	Halogenation of carbon
	This subclass is indented under subclass 87.  Processes which include halogenation of carbon.

142	Forming carbon to carbon multiple bond
	This subclass is indented under subclass 87.  Processes which include forming a carbon to carbon multiple bond.

143	Utilizing oxirane ring containing compound
	This subclass is indented under subclass 87.  Processes in which an oxirane ring containing compound is utilized.

144	Reactant having halogen or nitrogen attached directly to phosphorus by nonionic bonding
	This subclass is indented under subclass 87.  Processes in which a reactant contains halogen or nitrogen attached directly to phosphorus by nonionic bonding.

145	Reactant having nitrogen attached indirectly to phosphorus by nonionic bonding
	This subclass is indented under subclass 87.  Processes in which a reactant contains nitrogen attached indirectly to phosphorus by nonionic bonding.

146	Purification or recovery
	This subclass is indented under subclass 87.  Processes which include separating phosphorus esters from a reaction mixture or from impurities.

147	Of compounds having plural phosphori
	This subclass is indented under subclass 146.  Process in which there are two or more phosphori in the compounds purified or recovered.

148	Of compounds having halogen attached directly to phosphorus by nonionic bonding
	This subclass is indented under subclass 146.  Processes in which products having halogen attached directly to the phosphorus by nonionic bonding are purified or recovered.

149	Oxidation employed to purify or recover
	This subclass is indented under subclass 146.  Processes which include an oxidation step as part of the purification or recovery process.

150	Metal containing material utilized or separated
	This subclass is indented under subclass 146.  Preocesses in which a metal containing material is utilized or separated.

151	Oxygen single bonded to oxygen, or sulfur single bonded to sulfur (e.g., peroxy compounds, etc.)
	This subclass is indented under subclass 70.  Compounds which contain oxygen single bonded to oxygen or sulfur single bonded to sulfur.

152	Plural phosphori bonded to the same chalcogen (e.g., pyrophosphate esters, etc.)
	This subclass is indented under subclass 70.  Compounds wherein the same chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded to more than one phosphorus.

153	Phosphorus and a -C(=X)- group, wherein X is chalcogen, bonded directly to the same chalcogen
	This subclass is indented under subclass 70.  Compounds under which include the P-X-C(=X)- group wherein the X"s are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or telluriurium), and the phosphorus is trivalent or pentavalent.

154	Hydrazine, or substituted hydrazine, group attached directly or indirectly to the phosphorus by nonionic bonding (i.e., HHN-NH- group, wherein substitution may be made for hydrogen only)
	This subclass is indented under subclass 70.  Compounds wherein a hydrazine, or a substituted hydrazine, group is attached directly or indirectly to the phosphorus by nonionic bonding. (1) Note. An example of a compound provided for herein is: (2) Note. The hydrazine group is HHNNH-. Replacement of one or more hygrogens affords a substituted hydrazine group.

155	Plural phosphori attached directly or indirectly to each other by nonionic bonding
	This subclass is indented under subclass 70.  Compounds which contain two or more phosphori attached indirectly to each other by nonionic bonding. (1) Note. An example of a compound provided for herein is:

156	Plural phosphorus ester groups
	This subclass is indented under subclass 155.  Compounds which contain at least two phosphorus atoms that are part of hosphorus ester groups. (1) Note. An example of a compound provided for herein is:

157	Nitrogen bonded directly to phosphorus
	This subclass is indented under subclass 156.  Compounds wherein nitrogen is bonded directly to phosphorus. (1) Note. An example of a compound provided for herein is:

158	Nitrogen attached indirectly to phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 156.  Compounds wherein phosphorus is attached indirectly to nitrogen by acyclic nonionic bonding.

159	Having -C(=X)-, wherein X is chalcogen, bonded directly to the nitrogen
	This subclass is indented under subclass 158.  Compounds which contain the -C(=X)- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), bonded directly to the nitrogen. (1) Note. An example of a compound provided for herein is:

160	Having -C(=X)-, wherein X is chalcogen, attached indirectly to phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 156.  Compounds wherein a -C(=X)- group, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), is attached indirectly to phosphorus by acyclic nonionic bonding.

161	Divalent chalcogen double bonded directly to pentavalent phosphorus
	This subclass is indented under subclass 156.  Compounds wherein a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is double bonded directly to a pentavalent phosphorus. (1) Note. An example of a compound provided for herein is:

162	Plural phosphori attached indirectly to each other by a benzene ring or by a chain which includes a benzene ring
	This subclass is indented under subclass 161.  Compound in which plural phosphori are attached indirectly to each other by a benzene ring or by a chain which includes a benzene ring. (1) Note. An example of a compound provided for herein is:

163	Plural phosphori attached indirectly to each other by an acyclic chalcogen containing chain
	This subclass is indented under subclass 161.  Compounds in which plural phosphori are attached indirectly to each other by an acyclic chain, which chain contains chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) as a chain member. (1) Note. An example of a compound provided for herein is:

164	Plural chalcogens in the acyclic chain
	This subclass is indented under subclass 163.  Compounds in which there are two or more chalcogens (i.e., oxygen, sulfur, selenium, or tellurium) in the acyclic chain. (1) Note. An example of a compound provided for herein is:

165	Divalent chalcogen, bonded directly to two carbons or to carbon and hydrogen, attached indirectly to phosphorus by acyclic nonionic bonding (wherein the hydrogen may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal)
	This subclass is indented under subclass 164.  Compounds wherein a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), which is bonded directly to two carbons or to carbon and hydrogen, is attached indirectly to phosphorus by acyclic nonionic bonding, wherein the hydrogen may be replaced by substituted or unsubstituted ammounium, or by a Group IA or IIA light metal. (1) Note. Examples of compounds provided for herein are:

166	Nitrogen attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 70.  Compounds wherein the phosphorus is attached indirectly to nitrogen by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

167	The nitrogen is part of a cyano or isocyano group
	This subclass is indented under subclass 166.  Compounds in which the nitrogen is part of a cyano or an isocyano group. (1) Note. An example of a compound provided for herein is:

168	Chalcogen attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 167.  Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to the phosphorus by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein:

169	Chalcogen attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 166.  Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to the phosphorus by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

170	The chalcogen, X, is in a -C(=X)- group, which group is bonded directly to the nitrogen
	This subclass is indented under subclass 169.  Compounds in which a -C(=X)- group, sulfur, selenium, or tellurium), is bonded directly to the nitrogen. (1) Note. An example of a compound porvided for herein is:

171	Nitrogen bonded directly to the phosphorus
	This subclass is indented under subclass 170.  Compounds wherein the phosphorus is bonded directly to nitrogen. (1) Note. An example of a compound provided for herein is:

172	The -C(=X)- is part of a -C(=X)X- group, wherein the X's may be the same or diverse chalcogens
	This subclass is indented under subclass 170.  Compounds in which the -C(=X)- is part of a -C(=X)X- group, wherein the X"s may be the same or diverse chalcogens. (1) Note. An example of a compound provided for herein is:

173	Chalcogen, or additional -C(=X), bonded directly to the nitrogen
	This subclass is indented under subclass 170.  Compounds in which nitrogen is bonded directly to chalcogen or to an additional -C(=X)- group. (1) Note. Examples of compounds provided for herein are:

174	Two carbons bonded directly to the same chalcogen (e.g., sulfones, carboxylic acid esters, ethers, etc.)
	This subclass is indented under subclass 170.  Compounds wherein the same chalcogen is bonded directly to two carbons. (1) Note. Examples of compounds provided for herein are:

175	Chalcogen bonded directly to the nitrogen by nonionic bonding
	This subclass is indented under subclass 169.  Compounds in which the nitrogen is bonded directly to chalcogen by nonionic bonding. (1) Note. An example of a compound provided for herein is:

176	Containing carbon double bonded to nitrogen
	This subclass is indented under subclass 166.  Compounds which contain nitrogen double bonded to carbon. (1) Note. An example of a compound provided for herein is:

177	Chalcogen attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 70.  Compounds in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to the phosphorus by acyclic nonionic bonding.

178	The chalcogen, X, is in a -C(=X)- group
	This subclass is indented under subclass 177.  Compounds wherein the chalcogen, X, is in a -C(=X)- group. (1) Note. Examples of compounds provided for herein are:

179	The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens
	This subclass is indented under subclass 178.  Compounds in which the -C-(=X)- is part of a -C(=X)X- group, wherein the X"s are the same or diverse chalcogens.

180	Plural -C(=X)X- groups attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 179.  Compounds in which the phosphorus is attached indirectly to two or more -C(=X)X- groups by acyclic nonionic bonding, wherein the X"s are the same or diverse chalcogens. (1) Note. An example of a compound provided for herein is malathion, i.e.,

181	The carbon of the -C(=X)X- group is bonded directly to the phosphorus or to nitrogen which is bonded directly to the phosphorus
	This subclass is indented under subclass 179.  Compounds in which the carbon of the -C(=X) (X)- group is bonded directly to the phosphorus or to nitrogen, which nitrogen is bonded directly to the phosphorus. (1) Note. Examples of compounds provided for herein are:

182	Acyclic carbon chain containing carbon to carbon unsaturation attached directly or indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 179.  Compounds wherein the phosphorus is attached directly or indirectly by acyclic nonionic bonding to an acyclic carbon chain containing carbon to carbon unsaturation. (1) Note. Examples of compounds provided for herein are:

183	Plural carbons bonded directly to the same chalcogen which is attached indirectly to the phosphorus by acyclic nonionic bonding (e.g., ethers, etc.)
	This subclass is indented under subclass 177.  Compounds wherein plural carbons are bonded directly to the chalcogen, which chalcogen is attached indirectly to the phosphorus by acyclic nonionic bonding.

184	The chalcogen is part of a -S(=O)- or a -S(=O)(=O)- group (e.g., sulfones, etc.)
	This subclass is indented under subclass 183.  Compounds wherein the chalcogen is sulfur and is part or a -S(O)- or of a -S(=O) (=O)- group.

185	Nitrogen bonded directly to the phosphorus
	This subclass is indented under subclass 183.  Compounds wherein the phosphorus is bonded directly to nitrogen. (1) Note. An example of a compound provided for herein is:

186	Plural ether oxygens or thioether sulfurs attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 183.  Compounds wherein the phosphorus is attached indirectly by acyclic nonionic bonding to plural ether oxygens or plural thioether sulfurs.

187	The chalcogen is bonded directly to a benzene ring and to acyclic carbon
	This subclass is indented under subclass 183.  Compounds wherein an acyclic carbon and a benzene ring are bonded directly to the chalcogen. (1) Note. An example of a compound provided for herein is:

188	Halogen attached directly or indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 183.  Compounds wherein the phosphorus is attached directly or indirectly to halogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

189	Carbon bonded directly to the phosphorus
	This subclass is indented under subclass 183.  Compounds wherein the phosphorus is bonded directly to carbon. (1) Note. An example of a compound provided for herein is:

190	Nitrogen attached indirectly to the phosphorus by nonionic bonding
	This subclass is indented under subclass 70.  Compounds wherein the phosphorus is attached indirectly to nitrogen by nonionic bounding.

191	Nitrogen or halogen attached directly to the phosphorus by nonionic bonding
	This subclass is indented under subclass 190.  Compounds wherein the phosphorus is attached directly to nitrogen or halogen by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

192	Cyano or isocyano attached indirectly to the phosphorus by nonionic bonding
	This subclass is indented under subclass 190.  Compounds wherein the nitrogen is part of a cyano group or of an isocyano group. (1) Note. An example of a compound provided for herein is: (2) Note. The isocyano group is usually represented structurally as -N=C. It is also sometimes shown by the structure -N=C.

193	Nitro bonded directly to a benzene ring
	This subclass is indented under subclass 190.  Compounds in which a benzene ring is bonded directly to a nitro group.

194	Chalcogen attached indirectly to the phosphorus by nonionic bonding
	This subclass is indented under subclass 70.  Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to the phosphorus by nonionic bonding. (1) Note. An example of a compound provided for herein is:

195	Nitrogen or halogen attached directly to the phosphorus by nonionic bonding
	This subclass is indented under subclass 194.  Compounds in which the phosphorus is attached directly to nitrogen or halogen by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

196	The chalcogen is part of a -S(=O)- or a -S(=O)(=O)- group (e.g., sulfoxides, sulfonic acids, etc.)
	This subclass is indented under subclass 194.  Compounds in which the chalcogen is part of a -S(=O)- or of a -S(=OO)- or of a -S(=O) (O=) group. (1) Note. Examples of compounds provided for herein are:

197	Ether oxygen or thioether sulfur bonded directly to a benzene ring
	This subclass is indented under subclass 194.  Compounds wherein a benzene ring is bonded directly to ether oxygen or thioether sulfur. (1) Note. Examples of compounds provided for herein are:

198	The chalcogen, X, is in a -C(=X)- group
	This subclass is indented under subclass 194.  Compounds wherein the chalcogen, X, is in a -C(=X)- group. (1) Note. Examples of compounds provided for herein are:

199	Nitrogen bonded directly to the phosphorus
	This subclass is indented under subclass 70.  Compounds wherein the phosphorus is bonded directly to nitrogen. (1) Note. An example of a compound provided for herein is:

200	Benzene ring and the phosphorus bonded directly to the same chalcogen (i.e., the carbon of the phosphorus ester group is part of a benzene ring)
	This subclass is indented under subclass 199.  Compounds in which the phosphorus and a benzene ring are bonded directly to the same chalcogen (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. An example of a compound provided for herein is:

201	Acyclic carbon chain containing carbon to carbon unsaturation attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 199.  Compounds wherein the phosphorus is attached indirectly by acyclic nonionic bonding to an acyclic carbon chain containing carbon to carbon unsaturation. (1) Note. An example of a compound provided for herein is:

202	Halogen attached directly to the phosphorus by nonionic bonding
	This subclass is indented under subclass 70.  Compounds in which the phosphorus is attached directly to halogen by nonionic bonding. (1) Note. An example of a compound provided for herein is:

203	Halogen attached indirectly to the phosphorus by acyclic nonionic bonding
	This subclass is indented under subclass 70.  Compounds wherein the phosphorus is attached indirectly to halogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

204	Plural fluorines bonded to an acyclic carbon or to an acyclic carbon chain
	This subclass is indented under subclass 203.  Compounds in which plural fluorines are bonded to an acyclic carbon or to an acyclic carbon chain. (1) Note. Examples of compounds provided for herein are:

205	Carbon to carbon unsaturation containing
	This subclass is indented under subclass 203.  Compounds which contain carbon multiple bonded to another carbon. (1) Note. Examples of compounds provided for herein are:

206	The unsaturation is in a benzene ring
	This subclass is indented under subclass 205.  Compounds wherein the carbon to carbon unsaturation is in a benzene ring. (1) Note. An example of a compound provided for herein is:

207	Divalent chalcogen double bonded directly to the phosphorus
	This subclass is indented under subclass 70.  Compounds in which a divalent chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is double bonded directly to the phosphorus. (1) Note. An example of a compound provided for herein is:

208	And three divalent chalcogens single bonded directly to the phosphorus (e.g., trialkyl phosphates, etc.)
	This subclass is indented under subclass 207.  Compounds wherein the phosphorus is single bonded directly to each of three divalent chalcogens, which may be the same or diverse. (1) Note. Examples of compounds provided for herein are:

209	Alicyclic ring bonded directly to one of the chalcogens
	This subclass is indented under subclass 208.  Compounds in which one of the single bonded chalcogens is bonded directly to an allcyclic ring. (1) Note. An example of a compound provided for herein is:

210	Benzene ring bonded directly to one of the chalcogens
	This subclass is indented under subclass 208.  Compounds wherein one of the single bonded chalcogens is bonded directly to a benzene ring. (1) Note. An example of a compound provided for herein is:

211	Benzene ring bonded directly to each of the three chalcogens
	This subclass is indented under subclass 210.  Compounds wherein each of the three single bonded chalcogens is bonded directly to a benzene ring. (1) Note. An example of a compound provided for herein is:

212	Three or more halogens bonded directly to the benzene ring
	This subclass is indented under subclass 210.  Compounds in which the benzene ring is bonded directly the three of more halogens. (1) Note. An example of a compound provided for herein is:

213	Multiple bond between two acyclic carbons
	This subclass is indented under subclass 208.  Compounds which contain acyclic carbon multiple bonded directly to acyclic carbon. (1) Note. An example of a compound provided for herein is:

214	And two divalent chalcogens single bonded directly to the phosphorus
	This subclass is indented under subclass 207.  Compounds wherein the phosphorus is single bonded to each of two divalent chalcogens, which may be the same or diverse. (1) Note. An example of a compound provided for herein is:

215	Benzene ring bonded directly to one of the chalcogens
	This subclass is indented under subclass 214.  Compounds wherein one of the single bonded chalcogens is bonded directly to a benzene ring. (1) Note. An example of a compound provided for herein is:

216	Benzene ring bonded directly to the phosphorus
	This subclass is indented under subclass 214.  Compounds wherein the phosphorus is bonded directly to a benzene ring.

217	Multiple bond between two acyclic carbons
	This subclass is indented under subclass 214.  Compounds which contain acyclic carbon multiple bonded directly to acyclic carbon. (1) Note. An example of a compound provided for herein is:

218	Three divalent chalcogens single bonded directly to trivalent phosphorus (e.g., trialkyl phosphites, etc.)
	This subclass is indented under subclass 70.  Compounds in which three divalent chalcogens (i.e., oxygen, sulfor, selenium, or tellurium), which may be the same or diverse, are single bonded directly to trivalent phosphorus. (1) Note. Examples of compounds provided for herein are:

230	Esters having the thiocarboxylate group, -C(=X)X-, wherein the X's are the same or diverse chalcogens, with at least one X being sulfur, and wherein the single bonded X is bonded directly to an additional carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain the thiocarboxylate group, -C(=X)X-, wherein the X"s are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or tellurium) with at least one X being sulfur and wherein the single bonded X is bonded directly to an additional carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon. (1) Note. An example of a compound provided for herein is: SEE OR SEARCH CLASS: 588,  Hazardous or Toxic Waste Destruction or Containment,   subclasses 405 through 409for the chemical destruction of organic hazardous or toxic waste containing halogen, chalcogen, nitrogen, phosphorus, or metals.

231	Phosphorus attached directly or indirectly to the thiocarboxylate group by nonionic bonding
	This subclass is indented under subclass 230.  Compounds in which the thiocarboxylate group is attached directly or indirectly to phosphorus by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

232	Nitrogen bonded directly to the carbon of the -C(=X)X- group (e.g., thiocarbamates, etc.)
	This subclass is indented under subclass 230.  Compounds in which the carbon of the thiocarboxylate group is bonded directly to nitrogen. (1) Note. Examples of compounds provided for herein are:

233	Chalcogen, nitrogen, or additional -C(=X)- attached directly to the nitrogen by nonionic bonding (X is chalcogen)
	This subclass is indented under subclass 232.  Compounds in which the nitrogen is further attached directly to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), nitrogen or additional -C(=X)-, wherein X is chalcogen, by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

234	The -C(=X)X- is -C(=S)O-
	This subclass is indented under subclass 232.  Compounds in which the thiocarboxylate group is a -C(=S)O- group. (1) Note. Examples of compounds provided for herein are:

235	The -C(=X)X- is -C(=S)S-
	This subclass is indented under subclass 232.  Compounds in which the thiocarboxylate group is a -C(=S)S group. (1) Note. Examples of compounds provided for herein are:

236	Nitrogen or additional chalcogen attached indirectly to the nitrogen by acyclic nonionic bonding
	This subclass is indented under subclass 235.  Compounds in which there is nitrogen or additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) attached indirectly to the nitrogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

237	Plural HHN-C(=S)S- groups, wherein substitution may be made for hydrogen only
	This subclass is indented under subclass 236.  Compounds in which there is more than one HHN-C(=S)S- group, wherein substitution may be made for hydrogen only. (1) Note. An example of a compound provided for herein is:

238	Cyano or -C(=X)-, wherein X is chalcogen, attached indirectly to the nitrogen by acyclic nonionic bonding
	This subclass is indented under subclass 236.  Compounds in which cyano or -C(=X)-, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium), is attached indirectly to the nitrogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

239	Nitrogen or additional chalcogen attached indirectly to the nitrogen by acyclic nonionic bonding
	This subclass is indented under subclass 232.  Compounds in which nitrogen or additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to the nitrogen by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

240	The chalcogen, X, is in a -C(=X)- group
	This subclass is indented under subclass 239.  Compounds wherein the chalcogen is in a -C(-X)- group, X being the chalcogen. (1) Note. An example of a compound provided for herein is:

241	Benzene ring bonded directly to the nitrogen or to the sulfur of a -C(=O)S- group
	This subclass is indented under subclass 232.  Compounds wherein the nitrogen or the sulfur of a -C(=O)S- group is bonded directly to a benzene ring. (1) Note. An example of a compound provided for herein is:

242	Benzene ring attached indirectly to the nitrogen by nonionic bonding
	This subclass is indented under subclass 232.  Compounds wherein the nitrogen is attached indirectly to a benzene ring by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

243	Esters having the -X-C(=X)X- group, wherein the X's are the same or diverse chalcogens and at least one X is sulfur, and wherein one of the single bonded X's is bonded directly to carbon, which carbon may be single bonded to any atom, but may be multiple bonded only to carbon (e.g., thiocarbonates, etc.)
	This subclass is indented under subclass 230.  Compounds which have the thiocarboxylate group as part of an -X-C(=X)X- group, wherein the X"s are the same or diverse chalcogens, (i.e., oxygen, sulfur, selenium, or tellurium), at least one of the X"s is sulfur, and one of the single bonded X"s is bonded directly to carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. Examples of compounds provided for herein are:

244	Two -C(=X)- groups, wherein the X's are the same or diverse chalcogens, bonded directly to the same chalcogen or to a chain consisting of chalcogens (e.g., xanthic disulfides, etc.)
	This subclass is indented under subclass 243.  Compounds in which two -C(=X)- groups, wherein X is chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) are bonded directly to the same chalcogen or to a chain of chalcogens. (1) Note. An example of a compound provided for herein is:

245	The -X-C(=X)X- is -S-C(=S)O- (e.g., xanthates, etc.)
	This subclass is indented under subclass 243.  Compounds wherein the -X-C(=X)X- group is a -S-C(=S)O- group. (1) Note. An example of a compound provided for herein is:

246	Nitrogen or chalcogen attached indirectly to the -S-C(=S)O- group by acyclic nonionic bonding
	This subclass is indented under subclass 245.  Compounds in which the -S-C(=S)O- group is indirectly attached to nitrogen or chalcogen (e.e., oxygen, sulfur, selenium, or tellurlum) by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

247	Alkyl and hydrogen bonded directly to the -S-C(=S)O- group, wherein the hydrogen may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal (e.g., sodium ethyl xanthate, etc.)
	This subclass is indented under subclass 245.  Compounds wherein the -S-C(=S)O- group is bonded directly to one alkyl group and to hydrogen, which hydrogen may be replaced by substituted or unsubstituted ammonium or by a Group IA or IIA light metal. (1) Note. Examples of compounds provided for herein are:

248	The -X-C(=X)X- is -S-C(=O)O- (e.g., thiolcarbonates, etc.)
	This subclass is indented under subclass 243.  Compounds wherein the -X-C(=X)X- group is an -S-C(=O)O- group. (1) Note. Examples of compounds provided for herein are:

249	Halothiocarbonate esters (i.e., compounds wherein halogen is bonded directly to the carbon of the -C(=X)X- group)
	This subclass is indented under subclass 230.  Compounds in which halogen is bonded to the carbon of the thiocarboxylate group. (1) Note. Examples of compounds provided for herein are:

250	The -C(=X)X- is -C(=O)S-
	This subclass is indented under subclass 230.  Compounds wherein the -C(=X)X- grounp is -C(=O)S-. (1) Note. Examples of compounds provided for herein are:

251	Plural -C(=O)S- groups containing
	This subclass is indented under subclass 250.  Compounds which contain more than one -C(=O)S- group. (1) Note. Examples of compounds provided for herein are:

252	Chalcogen attached indirectly to the -C(=O)S- group by acyclic nonionic bonding
	This subclass is indented under subclass 250.  Compounds wherein a chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is indirectly attached to the-C(=OS- group by acyclic nonionic bonding. (1) Note. An example of a compound provided for herein is:

253	The chalcogen, X, is in a -C(=X)- group
	This subclass is indented under subclass 252.  Compounds wherein the chalcogen is in a -C(=X)- group, X being chalcogen. (1) Note. Examples of compounds provided for herein are:

254	Nitrogen bonded directly to the -C(=X)- group
	This subclass is indented under subclass 253.  Compounds wherein the -C(=X)- group is bonded directly to nitrogen. (1) Note. An example of a compound provided for herein is:

255	The -C(=X)- group is part of a -COO- group
	This subclass is indented under subclass 253.  Compounds wherein the -C(=X)- is part of a -C(=O)O- group. (1) Note. Examples of compounds provided for herein are:

256	Nitrogen attached indirectly to the -C(=O)S- group by acyclic nonionic bonding
	This subclass is indented under subclass 250.  Compounds wherein the -C(=O)S- group is attached indirectly to nitrogen by acyclic nonionic bonding. (1) Note. Example of a compound provided for herein is:

257	Benzene ring attached directly or indirectly to the -C(=0)S- group by nonionic bonding
	This subclass is indented under subclass 250.  Compounds wherein the -C(=O)S- group is atached directly or indirectly to a benzene ring by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

260	Carbonate esters (i.e, compounds having the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon)
	This subclass is indented under subclass 1.  Compounds under Class 532, ... which contain the -O-C(=O)O- group bonded directly to at least one carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon. (1) Note. Examples of compounds provided for herein are:

261	With preservative or stabilizer
	This subclass is indented under subclass 260.  Products wherein the carbonate ester is mixed with a preserving or stabilizing agent whose sole function is to prevent physical or chemical change.

262	Nitrogen attached directly to the -O-C(=O)O- group by nonionic bonding (e.g., oxime carbonates, urea carbonates, etc.)
	This subclass is indented under subclass 260.  Compounds wherein the -O-C(=O)O- group is attached directly to nitrogen by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

263	Oxygen bonded directly to the -O-C(=O)O- group by nonionic bonding (e.g., monoperoxycarbonates, etc.)
	This subclass is indented under subclass 260.  Compounds wherein the -O-C(=O)-O- group is attached directly to an additional oxygen by nonionic bonding. (1) Note. An example of a compound provided for herein is:

264	Carbonyl bonded directly to the oxygen (i.e., compounds having the -O-C(=O) O-O-C(=O)- group; e.g., peroxydicarbonates, acyl peroxycarbonates, etc.)
	This subclass is indented under subclass 263.  Compounds wherein carbonyl, -C(=O), is bonded directly to the oxygen. (1) Note. An example of a compound provided for herein is:

265	Plural -O-C(=O)O- groups attached indirectly to each other by nonionic bonding
	This subclass is indented under subclass 260.  Compounds which contain more than one -O-C(=O)O- group, which -O- C(=)O- groups are indirectly attached to each other by nonionic bonding. (1) Note. An example of a compound provided for herein is:

266	Additional chalcogen attached indirectly to one of the -O-C(=O)O- groups by acyclic nonionic bonding
	This subclass is indented under subclass 265.  Compounds wherein an additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached indirectly to one of the -O-C(=O)O- groups by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are

267	The additional chalcogen, X, is in a -C(=X)- group
	This subclass is indented under subclass 266.  Compounds wherein the chalcogen is in a -C(=X)- group, X bening the chalcogen. (1) Note. Examples of compounds provided for herein are:

268	Benzene ring attached directly or indirectly to one of the -O-C(=O)O- groups by nonionic bonding
	This subclass is indented under subclass 265.  Compounds wherein one of the -O-C(=O)O- groups is attached directly or indirectly to a benzene ring by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

269	Nitrogen attached directly or indirectly to the benzene ring by nonionic bonding
	This subclass is indented under subclass 268.  Compounds in which the benzene ring is attached directly or indirectly to nitrogen by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

270	Benzene ring bonded directly to the -O-C(=O)O- group
	This subclass is indented under subclass 260.  Compounds wherein the -O-C(=O)O- group is bonded directly to a benzene ring. (1) Note. Examples of compounds provided for herein are:

271	Additional chalcogen bonded directly to the benzene ring
	This subclass is indented under subclass 270.  Compounds wherein the benzene ring is bonded directly to an additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium). (1) Note. Examples of compounds provided for herein are:

272	Nitrogen bonded directly to the benzene ring
	This subclass is indented under subclass 270.  Compounds wherein the benzene ring is bonded directly to nitrogen. (1) Note. Examples of compounds provided for herein are:

273	Nitrogen or additional chalcogen attached indirectly to the benzene ring by acyclic nonionic bonding
	This subclass is indented under subclass 270.  Compounds wherein the benzene ring is attached indirectly to nitrogen or to an additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are:

274	Two benzene rings bonded directly to the -O-C(=O)O- group (i.e., diaryl carbonates)
	This subclass is indented under subclass 270.  Compounds wherein the -O-C(=O)O- group is bonded directly to two benzene rings. (1) Note. Examples of compounds provided for herein are:

275	Benzene ring attached indirectly to the -O-C(=O)O- group by nonionic bonding
	This subclass is indented under subclass 260.  Compounds wherein the -O-C(=O)O group is attached indirectly to a benzene ring by nonionic bonding. (1) Note. Examples of compounds provided for herein are:

276	Nitrogen or chalcogen attached indirectly to the -O-C(=O)O- group by acyclic nonionic bonding
	This subclass is indented under subclass 260.  Compounds wherein the -O-C(=O)O- group is attached indirectly to nitrogen or to chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) by acyclic nonionic bonding. (1) Note. Examples of compounds provided for herein are: