Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
5-[(1R)-2-[(5-Ethyl-2,3-dihydro-1H-inden-2-yl)amino]-1-hydroxyethyl]-8-hydroxy-2(1H)-quinolinone is an impurity of Indacaterol (I499745), a β-adrenoreceptor agonists for treatment of asthma and bronchodilator treatment for patients with chronic obstructive pulmonary diseases.