英文别名Ethinylestradiol EP Impurity A; 17-epi-Ethynyl estradiol; 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol; 17BETA-ETHINYLESTRADIOL; 17-epi-Ethynylestradiol; 17-Ethynylestra-1(10),2,4-triene-3,17α-diol; 19-Norpregna-1,3,5(10)-triene-20-yne-3,17α-diol; (8R,9S,13S,14S,17S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol; 17-Ethynyl-17α-estradiol; 17-epi Ethylnyl Estradiol (IMpurity A) 
