甲硫氨酸EP杂质D 货号:M101004 英文名:Methionine EP Impurity D 同义词:Ac-DL-Met-D-Met-OH;(2R)-2-(2-acetamido-4-(methylthio)butanamido)-4-(methylthio)butanoic acid CAS号:N/A 分子式:C12H22N2O4S2 分子量:322.44 询价订购