Process for selectively Controlling the crystallization of polymorphic forms of mesotrina

摘要

A process is described to selectively control the crystallization of polymorphs of thermodynamically Stable form (1) or (2) is kinetically Stable mesotrione from an aqueous solution of mesotrione,Understanding This method to adjust the PH of the Solutions of mesotrione to a value where the mesotrione thermodynamically Stable form (1) or (2) is kinetically Stable is finally obtained.