Appearance: colorless liquid. Aroma: clear spirit strong sweet smell, pineapple, banana, apple flavor.Easily spread, not lasting. Melting point: -93.3 °C Boiling point: 121.3 °C Relative density: 0.870--0.877 Refractive index: 1.390--1.394 Relative vapor density: 4 Saturated vapor pressure: 1.33 (15.3 °C) kPa Heat of combustion: 3558.0kJ/mol Flash point: 25 °C Ignition temperature: 463 °C Solubility: soluble in the 3 volume of 60% ethanol, and oil miscible, dissolved in propylene glycol, glycerol, do not dissolve in water. Stability: stable in alkaline medium, does not cause discoloration.