Tetrabutylammonium bromide (TBAB), min. 99 %, for synthesis, Molar mass (M) 322,4 g/mol, Density (D) 0,526 g/cm³, Flash point (flp) 76 °C, CAS No. [1643-19-2], EG-Nr. 216-699-2, Empirical formula C16H36BrN