Process for preparing a crystalline form of halobetasol propionate

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专利权人:

发明人:

Daniella Gutman,Shimon Chernyak

申请号：

US13735428

公开号：

US09365609B2

申请日:

2013.01.07

申请国别(地区):

US

年份:

2016

代理人:

摘要：

The present invention provides a process for preparing a crystalline form of halobetasol propionate, comprising the step of crystallizing halobetasol propionate from absolute ethanol or a mixture of ethanol and water, wherein the crystalline form of halobetasol propionate is characterized by an x-ray powder diffraction pattern having peaks at 10.0, 11.6, 12.9, 13.4, 14.5, 16.4, 17.6, and 23.5±0.2 degrees 2θ.

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中国工程科技知识中心

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