Crystalline form C of shuangzuocaotong, preparation method therefor and use thereof
申请人:QINGDAO KINGAGROOT CHEMICAL COMPOUND CO., LTD.
公开号:US11172681B2
公开(公告)日:2021-11-16
The present invention relates to the technical field of herbicide crystallization process, particularly to Crystalline form C of shuangzuocaotong, and a preparation method therefor and use thereof. The Crystalline form C of shuangzuocaotong has an X-ray powder diffraction pattern having characteristic absorption peaks at the following 2θ positions: 10.159, 10.658, 13.318, 14.579, 16.096, 18.061, 19.322, 19.68, 20.04, 20.659, 21.281, 23, 24.16, 24.619, 26.101, 26.74, 30.359, 31.018, 32.378, 35.398 and 38.26 degrees, wherein 2θ has an error range within ±0.2°. The Crystalline form C of shuangzuocaotong has good stability, and its compounded composition with additional active ingredient(s) has a good control effect to broadleaf weeds and some gramineous weeds in wheat, significantly better than that of Crystalline form A of shuangzuocaotong.
本发明涉及除草剂结晶工艺技术领域,尤其涉及双唑草酮的结晶形态C及其制备方法和用途。双唑草酮的结晶形式 C 具有 X 射线粉末衍射图谱,在以下 2θ 位置有特征吸收峰:10.159、10.658、13.318、14.579、16.096、18.061、19.322、19.68、20.04、20.659、21.281、23、24.16、24.619、26.101、26.74、30.359、31.018、32.378、35.398 和 38.26 度,其中 2θ 的误差范围在 ±0.2° 以内。双唑草酮结晶型 C 具有良好的稳定性,与其他有效成分复配后对小麦阔叶杂草和部分禾本科杂草具有良好的防效,明显优于双唑草酮结晶型 A。