培美曲塞杂质61 货号:P010061 英文名:Pemetrexed disodium Impurity 61 同义词:(S)-2-(4-(3-(2,4-diamino-6-oxo-1,6-dihydropyrimidin-5-yl)-3-oxopropyl)benzamido)pentanedioic acid CAS号:193281-05-9 分子式:C19H21N5O7 分子量:431.40 询价订购