Grade: Reag. Ph Eur CAS No.: 16593-81-0 pH: 9.8 (10 g/l, H2O, 20°C) Solubility: 38 g/l (20°C) Molar Mass: 255.21 g/mol Bulk Density: 630 kg/m3 Hill Formula: C11H8N3NaO2 * H2O