Product Name:Butanone Molecular formula: C4H8O Constitutional formula: CH3COC2H5 Relative molecular mass: 72.10 Appearance:Clean liquid, odor similar as acetone Contents: 99.9% Melting Point: -86.69 oC. Boiling point: 79.64 oC. Refractive index:1.3788. Flash point: -7.2 oC. Self-ignition point:404 oC. Density kg/m3:804.9 Soluble in water. Can be mixed with alcohols, aether, benzene, chloroform and oil. Easily set on fire when meet fire, high-temperature and strong oxidizer. It's toxic and narcotic.