培美曲塞二钠杂质29 货号:P010029 英文名:Pemetrexed disodium Impurity 29 同义词:(2S)-diethyl 2-(4-(3-(2,6-diamino-1-methyl-4-oxo-1,4-dihydropyrimidin-5-yl)-4-nitrobutyl)benzamido)pentanedioate CAS号:N/A 分子式:C25H34N6O8 分子量:546.57 询价订购