Either of two isomers of a gaseous hydrocarbon, C4H10, produced synthetically from petroleum and used as a household fuel, refrigerant, and aerosol propellant and in the manufacture of synthetic rubber.

• 丁烷两种气态碳氢化合物的同分异构体中的一种，C4H10，从石油中合成制得，用作家庭燃料、冷却剂和喷雾推进剂，也可用作合成橡胶的制造