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CAS号: 155683-61-7 英文名称: 4-Methyl Ethynyl Estradiol 英文同义词: Ethinylestradiol EP Imp K;4-Methyl Ethynyl Estradiol;Ethinylestradiol EP Impurity K;Ethinylestradiol Impurity 11（Ethinylestradiol EP Impurity K）;(17α)-4-Methyl-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol;19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, 4-methyl-, (17α)- (9CI);(8R,9S,13S,14S,17R)-17-ethynyl-4,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol 中文名称: 炔雌醇杂质K 中文同义词: 炔雌醇杂质K;4-甲基炔雌醇;炔雌醇EP杂质K;4-甲基乙炔雌二醇;炔雌醇杂质K(EP);乙炔雌二醇杂质K (EP) 分子式: C21H26O2 分子量: 310.43 沸点 : 465.2±45.0 °C(Predicted) 密度 : 1.19±0.1 g/cm3(Predicted) 酸度系数(pKa): 10.61±0.60(Predicted)