1-Fluorobutane is the organofluorine compound with the formula CH3(CH2)3F.

[1] This compound belongs to the group of aliphatic, saturated halogenated hydrocarbons.

[2][3] 1-Fluorobutane can be obtained by reacting 1-bromobutane with mercury(II) fluoride.

The compound can also be obtained by reacting 1-bromobutane with potassium fluoride in ethylene glycol.

[4] 1-Fluorobutane is a low-temperature boiling liquid that is highly soluble in ethanol.