CAS Number: 110-18-9 UN Number: UN2372 Melting Point: -55°C Molar Mass: 116.21 g/mol Boiling Point: 121°C (1013 hPa) Vapor Pressure: 21 hPa (20°C) Flash Point: 17°C Explosion Limit: 1 - 9 %(V) Density: 0.78 g/cm3 (20°C) pH: 8.0 - 8.5 (0.1 g/l, H2O, 20°C)