Process for selectively Controlling the crystallization of polymorphic forms of mesotrione.

摘要

A process is described to selectively control the crystallization of polymorphs Form 1 or 2 termodinu00c1micamente Stable kinetically Stable form of mesotrione from an aqueous solution of mesotrione,Said method comprising adjusting the PH of the Solutions of mesotrione to a value where the mesotrione termodinu00c1micamente Stable Form 1 or 2 cinu00c9ticamente Stable form is finally obtained.