TRIS hydrochloride, PUFFERAN®, min. 99 %, p.a., Molar mass (M) 157,60 g/mol, Density (D) 1,28 g/cm³, Boiling point (bp) 225 to 295 °C, CAS No. [1185-53-1], EG-Nr. 214-684-5, Empirical formula C4H11NO3 · HCl