Sub Group: Research Compounds Catalog Number: 6979 Formula: C22H24ClN3O CAS Number: 143228-84-6 Molecular Weight: 381.9 Synonyms: (R)-4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-1(2H)-phthalazinone(-)-Azelastine