Similar names: (17alpha)-19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol; 19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,17-diol; 17-Ethinyl-3,17-estradiol; 17-Ethinylestradiol; 17-Ethynyl-3,17-dihydroxy-1,3,5-oestratriene; 17-Ethynylestra-1,3,5(10)-triene-3,17beta-diol; 17-Ethynylestradiol; 17-Nor-17alpha-pregna-1,3,5-(10)-trien-20-yne-3,17-diol; 17alpha-Ethinyl-1,3,5(10)-estratriene-3,17-diol; 17alpha-Ethinyl-17beta-estradiol; 17alpha-Ethinyl-3,17-dihydroxy-delta1,3,5-estratriene; 17alpha-Ethinylestra-1,3,5(10)-triene-3,17beta-diol; 17alpha-Ethinylestradiol; 17alpha-Ethynylestra-1,3,5(10)-triene-3,17beta-diol; 17alpha-Ethynylestradiol; 19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,17beta-diol; Amenoron; Chee-O-Gen; Chee-O-Genf; Diogyn E; Dyloform; Esteed; Estigyn; Estinyl; Eston-E; Estoral; Estorals; 17-Ethynylestradiol; Ethidol; Ethinoral; Ethinylestradiol; Ethinyloestradiol; Ethynylestradiol; Ethynyloestradiol; Eticyclin; Eticyclol; Etinestrol; Etinestryl; Etinoestryl; Etistradiol; Follicoral; Ginestrene; Inestra; Linoral; Lynoral; Menolyn; Microfollin; NSC 10973; Novestrol; Oradiol; Orestralyn; Palonyl; Perovex; Primogyn; Primogyn C; Primogyn M; Progynon C; Prosexol; Spanestrin; neo-Estrone