英文别名8-chloro-11-piperidin-4-ylidene-5,6-dihydrobenzo[1,2]cyclohepta[2,4-b]pyridin-5-ol; 8-Chloro-6,11-dihydro-11-(4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-5-ol; 8-chloro-11-(piperidin-4-ylidene)-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-5-ol; Desloratadine Impurity 43; Desloratadine 5-Hydroxy Impurity; 5-OH desloratadine; 5-Hydroxydesloratadine 
