17-Hydroxy-19-nor-17-alpha-pregn-5(10)-en-3-one 17-alpha-Ethyl-19-nor-delta(sup 5(10))-androsten-17-beta-ol-3-one 19-Nor-17-alpha-pregn-5(10)-en-3-one, 17-beta-hydroxy- 19-Nor-17-alpha-pregn-5(10)-en-3-one, 17-hydroxy- 6318-07-6 NSC 26421