特非那定EP杂质C 货号:T084003 英文名:Tefenadine EP Impurity C 同义词:(R)-1-(4-(4-(tert-butyl)phenyl)-4-hydroxybutyl)-4-(hydroxydiphenylmethyl)piperidine 1-oxide CAS号:N/A 分子式:C32H41NO3 分子量:487.67 询价订购