N-butane

 N-Butane is an organic compound with a chemical formula of C4H10. It is a colorless gas with a slight unpleasant odor. It is soluble in water under pressure at room temperature and easily soluble in alcohol and chloroform. Flammable and explosive. Used as a solvent, refrigerant and organic synthesis raw material. Oilfield gas, wet natural gas and cracked gas all contain n-butane, which is obtained after separation.