盐酸雷尼替丁杂质B 货号:R012003 英文名:Ranitidine Impurity B HCl 同义词:2-(((5-((dimethylamino)methyl)furan-2-yl)methyl)thio)ethanamine CAS号:66356-53-4 分子式:C10H18N2OS 分子量:214.33 询价订购