Standards; Pharmaceutical/API Drug Impurities/Metabolites;
應用:
(E)-ethyl 4-(8-chloro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-11(6H)-ylidene)-3,4-dihydropyridine-1(2H)-carboxylate is an impurity of loratadine (L469575), which is a nonsedating-type histamine H1-receptor.