(17-alpha)-17-Hydroxy-19-norpregn-4-en-20-yn-3-one 17-Ethinyl-19-nortestosterone 17-Hydroxy-19-nor-17-alpha-pregn-4-en-20-yn-3-one 17-Hydroxy-19-nor-17alpha-pregn-4-en-20-yn-3-one 17-alpha-19-Norpregn-4-en-20-yn-3-one, 17-hydroxy- 17-alpha-Ethinyl-17-beta-hydroxy-delta(sup:4)-estren-3-one 17-alpha-Ethinylestra-4-en-17-beta-ol-3-one 17-alpha-Ethynyl-17-beta-hydroxy-19-norandrost-4-en-3-one 17-alpha-Ethynyl-17-hydroxy-4-estren-3-one 17-alpha-Ethynyl-19-norandrost-4-en-17-beta-ol-3-one 17-alpha-Ethynyl-19-nortestosterone 17-alpha-Ethynyl-4-estren-17-ol-3-one 17-beta-Hydroxy-19-norpregn-4-en-20-yn-3-one 17alpha-Ethinyl-17beta-hydroxy-delta(sup:4)-estren-3-one 17alpha-Ethinyl-19-nortestosterone 17alpha-Ethinylestra-4-en-17beta-ol-3-one 17alpha-Ethynyl-17-hydroxy-4-estren-3-one 17alpha-Ethynyl-17beta-hydroxy-19-norandrost-4-en-3-one 17alpha-Ethynyl-19-norandrost-4-en-17beta-ol-3-one 17alpha-Ethynyl-19-nortestosterone 17alpha-Ethynyl-4-estren-17-ol-3-one 17beta-Hydroxy-19-norpregn-4-en-20-yn-3-one 19-Nor-17-alpha-ethynyl-17-beta-hydroxy-4-androsten-3-one 19-Nor-17-alpha-ethynylandrosten-17-beta-ol-3-one 19-Nor-17-alpha-ethynyltestosterone 19-Nor-17-alpha-pregn-4-en-20-yn-3-one, 17-hydroxy- 19-Nor-17-ethinyl testosterone 19-Nor-17-ethinyltestosterone 19-Nor-17alpa-ethynyltestosterone 19-Nor-17alpha-pregn-4-en-20-yn-3-one, 17-hydroxy- 19-Nor-17alpha-pregn-4-en-20-yn-3-one, 17-hydroxy- (8CI) 19-Nor-ethindrone 19-Nor-ethinyl--4,5-testosterone 19-Norethinyltestosterone 19-Norethisterone 19-Norpregn-4-en-20-yn-3-one, 17-hydroxy-, (17alpha)- 19-Nortestosterone, 17-ethynyl- 19-nor-17alpha-Ethynyl-17beta-hydroxy-4-androsten-3-one 19-nor-17alpha-Ethynylandrosten-17beta-ol-3-one 19-nor-17alpha-Ethynyltestosterone 4-08-00-01221 (Beilstein Handbook Reference) 68-22-4 AI3-26422 Anhydrohydroxynorprogesterone Anovulatorio Anovule BRN 1915671 Brevicon Brevinor 21 Brevinor 28 Brevinor-1 21 Brevinor-1 28 CCRIS 484 Ciclovulan Conludaf Conludag EINECS 200-681-6 Estr-4-en-3-one, 17alpha-ethynyl-17-hydroxy- Estrinor Ethinyl-19-nortestosterone Ethinylnortestosterone Ethynylmortestosterone Ethynylnortestosterone Gencept Genora Gestest HSDB 3370 Jenest-28 Microneth Micronett Micronor Micronovum Milli Mini-pe Mini-pill Minovlar Modicon N.E.E.