di-Sodium hydrogen phosphate, min. 99 %, p.a., ISO, Molar mass (M) 358,14 g/mol, Density (D) 1,52 g/cm³, Boiling point (bp) 30 to 40 °C, CAS No. [10039-32-4], EG-Nr. 600-088-6, Empirical formula Na2HPO4 · 12 H2O