C3H5N

The molecular formula C3H5N (molar mass: 55.08 g/mol, exact mass: 55.0422 u) may refer to:


 * 1-Azabicyclo[1.1.0]butane
 * 1-Azetine
 * 2-Azetine
 * Propargylamine (2-propynylamine)
 * Propionitrile (propanenitrile)