CRYSTALS OF CYENOPYRAFEN AND ITS PREPARATION METHODS

摘要

To provide a crystal of (E)-2-(4-tert-butylphenyl)-2-cyano-1-(1,3,4-trimethylpyrazol-5-yl) vinyl=2,2-dimethylpropionate, its preparation method and a suspension composition containing thereof. Measure to solve the problem Low-melting-point crystal or high-melting-point crystal of (E)-2-(4-tert-butylphenyl)-2- Cyano-1-(1,3,4-trimethylpyrazol-5-yl)vinyl=2,2-dimethylpropionate. A suspension Composition better in preservation stability comprising said low-melting-point crystal and dispersing media.