US 9,809,555 B2
Form of mefenpyr-diethyl, a process for its preparation and use of the same
James Timothy Bristow, Hong Kong (CN)
Assigned to ROTAM AGROCHEM INTERNATIONAL COMPANY LIMITED, Chai Wan (HK)
Filed by ROTAM AGROCHEM INTERNATIONAL COMPANY LIMITED, Chai Wan, Hong Kong (CN)
Filed on Dec. 2, 2015, as Appl. No. 14/956,991.
Prior Publication US 2017/0158641 A1, Jun. 8, 2017
Int. Cl. C07D 231/06 (2006.01); A01N 43/56 (2006.01); A01N 47/36 (2006.01); A01N 25/32 (2006.01)
CPC C07D 231/06 (2013.01) [A01N 43/56 (2013.01); A01N 47/36 (2013.01)] 15 Claims
 
1. A crystalline modification I of mefenpyr-diethyl, exhibiting each of the following reflexes in an X-ray powder diffractogram recorded using Cu-Kα radiation at 25° C.:
2θ=7.76±0.2  (1)
2θ=10.76±0.2  (2)
2θ=14.00±0.2  (3)
2θ=14.85±0.2  (4)
2θ=16.67±0.2  (5)
2θ=19.49±0.2  (6)
2θ=23.10±0.2  (7)
2θ=23.75±0.2  (8)
2θ=24.48±0.2  (9)
2θ=26.02±0.2  (10)
2θ=26.27±0.2  (11)
2θ=28.49±0.2  (12).