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CAS号: 66289-21-2 英文名称: (20R)-3-oxopregn-4-ene-20-carbaldehyde 英文同义词: Nsc9137;Progesterone Impurity 20;(20R)-20-Methylpregna-4-ene-3,21-dione;(20R)-3-oxopregn-4-ene-20-carbaldehyde;Pregn-4-ene-20-carboxaldehyde, 3-oxo-, (20R)-;(2R)-2-[(8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]propanal 中文名称: 黄体酮杂质 中文同义词: 孕酮杂质20 分子式: C22H32O2 分子量: 328.49