特非那定EP杂质A 货号:T084001 英文名:Tefenadine EP Impurity A 同义词:1-(4-(tert-butyl)phenyl)-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butan-1-one CAS号:N/A 分子式:C32H39NO2 分子量:469.66 询价订购