124831-98-7 17-(Acetyloxy)-5,10-epoxyestran-3-one (5alpha,17beta)- 17beta-(Acetyloxy)-5alpha,10-epoxyestran-3-one 3-Keto-5,10-epoxy-nor-19-methylandrostane-17-acetate Estran-3-one, 17-(acetyloxy)-5,10-epoxy-, (5alpha,17beta)- Keto-epoxy-Me-androstane acetate