1'-(Methylsulfonyl)-1'H-5alpha,17alpha-pregn-20-yno(3,2-c)pyrazol-17-ol 1'H-Pregn-20-yno(3,2-c)pyrazol-17-ol, 1'-(methylsulfonyl)-, (5alpha,17alpha)- 107000-34-0 Win 49,596 ZANOTERONE Zanoterone [USAN:INN]