Desloratadine Impurity 4 Catalogue D225637 CAS 117810-61-4 M.W C20H19ClN2O M.F 338.84 Specifications FAQs 4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin- 11-ylidene)piperidine-1-carbaldehyde
