Pregn-4-ene-3,20-dione, 6-fluoro-11,21-dihydroxy-16,17-((1-methylethylidene)bis(oxy))-, (6alpha,11beta,16alpha)-
6alpha-Fluoro-11beta,16alpha,17,21-tetrahydroxypregn-4-ene-3,20-dione, cyclic 16,17-acetal with Acetone