盐酸雷尼替丁杂质A 货号:R012002 英文名:Ranitidine Impurity A HCl 同义词:N,N'-bis(2-(((5-((dimethylamino)methyl)furan-2-yl)methyl)thio)ethyl)-2-nitroethene-1,1-diamine CAS号:N/A 分子式:C22H35N5O4S2 分子量:497.67 询价订购