5-Chloromethyl 6?,9?-Difluoro-11?-hydroxy-16?-methyl-3-oxo-17?-(propionyloxy)-androsta-1,4-diene-17?-carbothioate; (6?.,11?,16?,17?)-6,9-Difluoro-11-hydroxy-16-methyl-3-oxo-17-(1-oxopropoxy)androsta-1,4-diene-17-carbothioic Acid S-(Chloromethyl) Ester; CCI 18773