16-alpha,17-alpha-epoxy-3,20-dioxopregn-4-en-21-yl acetate
CAS No. 21853-83-8
16-alpha,17-alpha-epoxy-3,20-dioxopregn-4-en-21-yl acetate;21-Acetoxy-16α,17-epoxypregn-4-ene-3,20-dione