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CAS号: 21508-50-9 英文名称: 13-Ethyl-10,17-dihydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one 英文同义词: 10β-HydroxyLevonorgestrel;10β-Hydroxy D-(-)-Norgestrel;Levonorgestrel EP impurity I;Levonorgestrel Impurity I (EP);10-beta-Hydroxy Levonorgestrel;Levonorgestrel EP Impurity I (10-beta-Hydroxy Levonorgestrel);13-Ethyl-10,17-dihydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one;(17α)-13-Ethyl-10,17-dihydroxy-18,19-dinorpregn-4-en-20-yn-3-one;18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-10,17-dihydroxy-, (17α)-;(8S,9S,10S,13S,14S,17R)-13-ethyl-17-ethynyl-10,17-dihydroxy-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one 中文名称: 10-Β-羟基左炔诺孕酮 中文同义词: 左炔诺孕酮杂质I(EP);左炔诺孕酮EP杂质I(10-Β-羟基左炔诺孕酮) 分子式: C21H28O3 分子量: 328.45 熔点 : 226-229 °C(Solv: benzene (71-43-2)) 沸点 : 497.6±45.0 °C(Predicted) 密度 : 1.20±0.1 g/cm3(Predicted) 酸度系数(pKa): 13.01±0.60(Predicted)