21-Chloro-6alpha,9-difluoro-11beta,17-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 17-propionate 66852-54-8 BMY 30056 CGP 14458 HALOBETASOL PROPIONATE Halobetasol Halobetasol propionate [USAN] Pregna-1,4-diene-3,20-dione, 21-chloro-6,9-difluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)-, (6alpha,11beta,16beta)- Ulobetasol propionate Ultravate