17.alpha.-Ethinyl-19-nortestosterone enanthate 17.alpha.-Ethynyl-17.beta.-heptanoyloxy-4-estren-3-one 17.alpha.-Ethynyl-19-nortestosterone 17-heptanoate 17.alpha.-Ethynyl-19-nortestosterone enanthate 19-Nor-17.alpha.-pregn-4-en-20-yn-3-one, 17-hydroxy-, heptanate 19-Nor-17.alpha.-pregn-4-en-20-yn-3-one, 17-hydroxy-, heptanoate 19-Norpregn-4-en-20-yn-3-one, 17-[(1-oxoheptyl)oxy]-, (17.alpha.)- 19-nor-17.alpha.-Pregnen-20-ynone, 17.beta.-heptanoyloxy- 3836-23-5 NE NEE NSC22846 Norethindrone enanthate Norethisterone enanthate Noristerat Norlutin enanthate SH 393 WLN: L E5 B666 OV MUTJ E1 FOV6 F1UU1