Cetirizine EP Impurity B CAT No: SZ-C032003 CAS No: 113740-61-7 Mol.F. : C19H21ClN2O2 Mol.Wt. : 344.8 Inv. Status: In Stock Rel. CAT No : SZ-L045009, SZ-C032003 CAS No:113740-61-7 Mol.F.: C19H21ClN2O2 Mol.Wt.: 344.8 Inv. Status: In Stock