Acetonitrile is the chemical compound with the formula CH₃CN. This colourless liquid is the simplest organic nitrile (hydrogen cyanide is a simpler nitrile, It is used as a polar aprotic solvent in organic synthesis and in the purification of butadiene but the cyanide anion is not classed as organic). It is produced mainly as a byproduct of acrylonitrile manufacture.

It is used as an industrial solvent in Pharma, Pesticides and Fragrance industries.  It is also used in extraction of Fatty Acid.
Synonyms ACN, Methyl cyanide, Ethyl nitrile, Cyanomethane
Product Information
CAS No 75-05-8
Chemical Formula CH₃CN
Hill Formula C₂H₃N
Molar Mass 41.05 g/mol
Physicochemical Information
Density 0.786 g/cm³ (20 °C)
Melting Point -45.7 °C
Boiling Point 81.6 °C (1013 hPa)
Explosion Limit 3.0 - 17 %(V)
Ignition Temperatare 524 °C
Refractive Index 1.34
Vapor Pressure 97 hPa (20 °C)
Solubility (20 °C) soluble
Flash point 2 °C