Cetirizine 4-Chlorobenzophenone Impurity (USP) CAT No: SZ-C032015 CAS No: 134-85-0 Mol.F. : C13H9ClO Mol.Wt. : 216.7 Inv. Status: In Stock SZ-C032015 CAS No:134-85-0 Mol.F.: C13H9ClO Mol.Wt.: 216.7 Inv. Status: In Stock