CAS No.: 97-72-3 UN No.: UN2922 Solubility: (20°C) Hydrolysis Melting Point: -69°C Molar Mass: 158.2 g/mol Vapor Pressure: 5 hPa (50°C) Flash Point: 66°C Refractive Index: 66°C Explosion Limit: 1 - 6.2 %(V) Density: 0.95 g/cm3 (20°C) Ignition Point: 375°C