17-alpha-Acetoxy-21-fluoro-6-alpha-methylprogesterone 21-Fluoro-17-alpha-hydroxy-6-alpha-methylpregn-4-ene-3,20-dione acetate (ester) 3185-11-3 Pregn-4-ene-3,20-dione, 21-fluoro-17-alpha-hydroxy-6-alpha-methyl-, acetate (ester)