13611-97-7 17-Hydroxy-5-alpha,17-alpha-pregn-20-yn-3-one 5-alpha,17-alpha-Pregn-20-yn-3-one, 17-hydroxy- 5-alpha-Androstan-17-alpha-ethynyl-17-beta-ol-3-one Pregn-20-yn-3-one, 17-hydroxy-, (5-alpha,17-alpha)-