CAS No.: 504-17-6 pH: 1.7 - 1.9 (10 g/l, H2O, 20°C) Solubility: (20°C) slightly soluble Melting Point: 235°C Molar Mass: 144.14 g/mol Bulk Density: 210 kg/m3 Hill Formula: C4H4N2O2S