英文别名Olopatadine Ethyl Este; ethyl(Z)-2-(11-(3-(dimethylamino)propylidene)-6,11-dihydrodibenzo [b,e]oxepin-2-yl)acetate; Olopatadine (Z)-Ethyl Ester; Olopatadine Impurity 42; Dibenz[b,e]oxepin-2-acetic acid, 11-[3-(dimethylamino)propylidene]-6,11-dihydro-, ethyl ester, (11Z)-; Olopatadine Ethyl Ester (HCl) 
