10alpha-Pregn-4-ene-19-carboxaldehyde, 9-fluoro-11beta,16alpha,17,21-tetrahydroxy-3,20-dioxo-, cyclic 16,17-acetal with acetone, 21-hexanoate 7704-11-2 9-Fluoro-11-hydroxy-16,17-((1-methylethylidene)bis(oxy))-3,20-dioxo-21-((1-oxohexyl)oxy)pregn-4-ene-19-carboxaldehyde (10alpha,11beta,16alpha)- Pregn-4-ene-19-carboxaldehyde, 9-fluoro-11-hydroxy-16,17-((1-methylethylidene)bis(oxy))-3,20-dioxo-21-((1-oxohexyl)oxy)-, (10alpha,11beta,16alpha)-