Halobetasol Propionate: C~25~H~31~ClF~2~O~5~. Mw: 484.96. (1) Pregna-1,4-diene-3,20-dione, 21-chloro-6,9-difluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)-, (6α,11β,16β)-; (2) 21-Chloro-6α,9-difluoro-11β,17-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 17-propionate. CAS-66852-54-8; CAS-98651-66-2 (halobetasol)(1990).
