Crystalline forms of halobetasol propionate

Details Crystalline forms of halobetasol propionate Crystalline forms of halobetasol propionate

2007-04-24

2007-04-24

Qazi, Sabiha N. (Department: 1616)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

C514S180000, C552S569000, C552S570000

Reexamination Certificate

active

10341690

ABSTRACT:
The present invention provides a crystalline halobetasol propionate selected from the group consisting of halobetasol propionate having crystalline Form I characterized by power X-ray diffraction peak positions and intensities as set forth in Table 1 herein, halobetasol propionate having crystalline Form II characterized by power X-ray diffraction peak positions and intensities as set forth in Table 2 herein, halobetasol propionate having crystalline Form III characterized by power X-ray diffraction peak positions and intensities as set forth in Table 3 herein, halobetasol propionate having crystalline Form IV characterized by power X-ray diffraction peak positions and intensities as set forth in Table 4 herein, halobetasol propionate having crystalline Form V characterized by power X-ray diffraction peak positions and intensities as set forth in Table 5 herein, and halobetasol propionate having crystalline Form VI characterized by power X-ray diffraction peak positions and intensities as set forth in Table 6 herein.

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