英文别名1-Ethoxyethyl-indacaterol; 5-[2-[(5,6-diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-ethoxyethyl]-8-hydroxy-2(1H)-quinolinone; 5-(2-((5,6-diethyl-2,3-dihydro-1H-inden-2-yl)amino)-1-ethoxyethyl)-8-hydroxyquinolin-2(1H)-one; Indacaterol Impurity 33; 2(1H)-Quinolinone, 5-[2-[(5,6-diethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-ethoxyethyl]-8-hydroxy-; Indandartrol impurities 
