| abstract |
The invention relates to a crystalline polymorph of a compound of formula I called Form 2, wherein the polymorph is characterized by an x-ray powder diffraction pattern expressed in angles 2θ, where the x-ray powder pattern includes: (a) at least one 2θ angle value of 9.0 ± 0.2; (b) a single angle value of 2θ of 21.7 ± 0.2; and (c) at least three angles of 2θ selected from the group consisting of 7.7 ± 0.2, 11.9 ± 0.2, 13.4 ± 0.2, 15.0 ± 0.2, 15 , 6 ± 0.2, 16.1 ± 0.2 and 18.0 ± 0.2. In addition, the invention relates to an agricultural composition, a method of protecting crops of useful plants and a method of controlling weeds in crops of useful plants, including the use of said polymorph as an antidote. |