安乃近EP杂质E 货号:M083001 英文名:Metamizole EP Impurity E 同义词:((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)methanesulfonic acid CAS号:117-38-4 分子式:C12H15N3O4S 分子量:297.33 询价订购