英文别名Procaterol Impurity 4; 5-(2-bromo-1-oxobutyl)-8-hydroycarbostyril; 5-(2-bromo-butyryl)-8-hydroxy-1H-quinolin-2-one; 5-(α-bromobutyryl)-8-hydroxycarbostyril; 5-(2-BROMO-1-OXOBUTYL)-8-HYDROXY-2(1H)-QUINOLINONE; 5-(2-bromobutanoyl)-8-hydroxy quinolin-2(1H)-one; 2(1H)-Quinolinone, 5-(2-bromo-1-oxobutyl)-8-hydroxy-; 5-(2-Bromobutyryl)-8-hydroxyquinolone 
