CRYSTAL FORM OF ACLONIFEN, METHOD OF PREPARATION AND USE OF THE CRYSTAL FORM

Claims

The present invention provides a crystalline form of aclonifen, as well as a method for its preparation and use. In the present invention, the crystalline form of aclonifen is obtained by recrystallizing aclonifen in its amorphous state and is referred to as aclonifen solid form A. The crystalline form is analyzed using various analytical methods and is employed to obtain a stable agrochemical preparation. The method for preparing aclonifen solid form A provided in this invention exhibits a high recovery rate, is simple, and is industrially scalable. The crystalline form of aclonifen solid form A exhibits high stability in preparations, giving it promising application potential.