CAS No.: 89-25-8 pH: 4.0 - 4.4 (H2O, 20°C) (saturated aqueous solution) Solubility: 3.30 g/l (23°C) Melting Point: 127.5 - 129.5°C Molar Mass: 174.2 g/mol Bulk Density: 500 kg/m3 Boiling Point: 191°C (9.33 hPa) Density: 1.12 g/cm3 (20°C)