Colorless clear liquid. Benzene-like odor. Strong refractive index. Miscible with ethanol, ether, acetone, chloroform, carbon disulfide and glacial acetic acid, very slightly soluble in water. Relative density 0.866. Freezing point -95℃. Boiling point 110.6℃. Refractive index 1.4967. Flash point (closed cup) 4.4℃. Flammable. Vapor can form explosive mixture with air, explosion limit 1.2%~7.0% (volume). Low toxicity, median lethal dose (rat, oral) 5000mg/kg. High concentration of gas is anesthetic. Irritant.