Butyronitrile or butanenitrile or propyl cyanide, is a nitrile with the formula C3H7CN. This colorless liquid is miscible with most polar organic solvents. Uses Butyronitrile is mainly used as a precursor to the poultry drug amprolium. It also has recognized use in the synthesis of Etifelmine. Synthesis Butyronitrile is prepared industrially by the ammoxidation of n-butanol: C3H7CH2OH + NH3 + O2 → C3H7CN + 3 H2O Occurrence in space Butyronitrile has been detected in the Large Molecule Heimat. References External links NIST Chemistry WebBook page for C4H7N CDC - NIOSH Pocket Guide to Chemical Hazards 4