培美曲塞杂质40 货号:P010040 英文名:Pemetrexed Impurity 40 同义词:(S)-diethyl 2-((S)-2-(4-(2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzamido)-5-ethoxy-5-oxopentanamido)pentanedioate CAS号:N/A 分子式:C31H40N6O9 分子量:640.68 询价订购