C21H28O2,1H-4-21(23H)11H2-9H2-18H-19H-15H(2H3)12H2-13-5H-14(22)6H2-7H2-16H(13)17H(19)8H2-10H2-20(18,21)3H3
15+,16-,17+,18-,19+,20-,21-
1162-60-3
CC1CC2=CC(=O)CCC2C3CCC4(C)C(CCC4(O)C#C)C13
19-Norpregn-4-en-20-yn-3-one, 17-hydroxy-7-methyl-, (7.alpha., 17.alpha.)- (9CI)
7.alpha.-Methyl-17-ethinyl-19-nortestosterone