钆贝葡胺杂质4 货号:G047004 英文名:Gadobenate Dimeglumine Impurity 4 同义词:2,2'-((2-(4-(carboxymethyl)-2-oxopiperazin-1-yl)ethyl)azanediyl)diacetic acid CAS号:N/A 分子式:C12H19N3O7 分子量:317.30 询价订购