Demethylazelastine

desmethylazelastine

N-Desmethyl Azelastine

4-(p-Chlorobenzyl)-2-[(hexahydro-1H-azepin)-4-yl]phthalazin-1(2H)-one

4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1H-azepin-4-yl)-1(2H)-phthalazinone