SynonymsN-Formyl Desloratadine; 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-piperidinecarboxaldehyde; Loratadine N-Formyl Impurity Close N-Formyl Desloratadine; 4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-piperidinecarboxaldehyde; Loratadine N-Formyl Impurity Related products Desloratadine Related Compound F M.F. M.W. 338.84 CAT# AR-H02191 CAS# 117810-61-4 Desloratadine EP Impurity B DiHCl Salt M.F. M.W. 383.73 CAT# AR-D05966 CAS# NA Desloratadine EP Impurity B M.F. M.W. 310.82 CAT# AR-R05728 CAS# 183198-49-4 (free base)