1-Acetoxy-17-ethinyl-17-hydroxy-18-methyl-4-estren-3-one 18,19-Dinorpregn-4-en-20-yn-3-one, 1-(acetyloxy)-13-ethyl-17-hydroxy-, (1beta,17alpha)- 1beta-Acetoxy-17alpha-ethinyl 17-hydroxy-18-methyl-4-ostren-3-on 53020-96-5 Aehmeo