英文别名(8S,13S,14S,17R)-17-Ethynyl-13-methyl-7,8,12,13,14,15,16,17-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol; Ethinylestradiol EP Impurity B; 3,17β-dihydroxy-19-norpregna-1,3,5(10),9(11)-tetraene-20-yne; 9,11-DEHYDRO ETHYLNYL ESTRADIOL; 19-NOR-17A-PREGNA-1,3,5(10),9(11)-TETRAEN-20-YNE-3,17-DIOL; DELTA-9(11)-ETHYNYLESTRADIOL; 9,11-Dehydro ethynylestradiol; Ethinylestradiol impurity B; 19-Norpregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol; DELTA9,11-ETHINYL ESTRADIOL; 9,11-Didehydroethinylestradiol; Ethinyl Estradiol Related Compound B 
