苄基沙丁胺醇杂质7 货号:B044007 英文名:Benzyl Albuterol Impurity 7 同义词:2-(benzyloxy)-5-(2-(tert-butylamino)-1-hydroxyethyl)benzoic acid CAS号:N/A 分子式:C20H25NO4 分子量:343.42 询价订购