Acetonitrile is an organic compound with the chemical formula CH3CN or C2H3N. It is a colorless, transparent liquid with excellent solvent properties, capable of dissolving a variety of organic, inorganic, and gaseous substances. It is infinitely miscible with water and alcohols. Acetonitrile undergoes typical nitrile reactions and is used in the preparation of many typical nitrogen-containing compounds, making it an important organic intermediate.