Varenicline Nitroso Impurity 1 CAT No: SZ-V015037 CAS No: 2755871-02-2 Mol.F. : C13H12N4O Mol.Wt. : 240.3 Inv. Status: In Stock SZ-V015037 CAS No:2755871-02-2 Mol.F.: C13H12N4O Mol.Wt.: 240.3 Inv. Status: In Stock