| 摘要 |
<p num="1"><br/> The present invention relates to novel crystalline polymorphs, solvate <br/>pseudomorphs and amorphous form of <br/>(fipronil). The present invention also provides methods for preparing the <br/>novel 5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl] -4- <br/>[(trifluoromethyl)sulfinyl] -1H-pyrazole-3 -carbonitrile <br/>polymorphs, pseudomorphs and amorphous form, as well as insecticidal or <br/>pesticidal <br/>compositions comprising same, and methods of use thereof as pesticidal agents.<br/>
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