英文别名Loratadine 4-Hydroxymethyl Impurity; Loratadine Impurity 23; ethyl 4-[8-chloro-4-(hydroxymethyl)-5,6-dihydrobenzo[4,5]cyclohepta[1,2-b]pyridin-11-ylidene]piperidine-1-carboxylate; 4-[8-Chloro-5,6-dihydro-4-(hydroxymethyl)-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene]-1-piperidinecarboxylic Acid Ethyl Ester; Loratadine Impurity 4 
