Pharmaceutical IntermediateChina Alcaftadine Intermediate 11- (1-Methylpiperidin-4-ylidene) -6, 11-Dihydro-5h-Benzo[D]Imidazo[1, 2-a]Azepine CAS No.: 147083-36-1, Find details about China CAS No.: 147083-36-1, Alcaftadine Intermediate from Alcaftadine Intermediate 11- (1-Methylpiperidin-4-ylidene) -6, 11-Dihydro-5h-Benzo[D]Imidazo[1, 2-a]Azepine CAS No.: 147083-36-1