TRIS, PUFFERAN®, min. 99,3 %, Buffer Grade, Molar mass (M) 121,14 g/mol, Density (D) 1,32 g/cm³, Boiling point (bp) 288 °C, CAS No. [77-86-1], EG-Nr. 201-064-4, Empirical formula C4H11NO3