Cetyltrimethylammonium bromide (CTAB), min. 99 %, for biochemistry, Molar mass (M) 364,46 g/mol, Density (D) 0,5 g/cm³, CAS No. [57-09-0], UN-Nr. 3077, EG-Nr. 200-311-3, Empirical formula C19H42BrN