Propane

 Propane, the chemical formula is CH₃CH₂CH₃, and the molecular weight is 44.10. It is an organic compound, a colorless, liquefiable gas. Slightly soluble in water, soluble in ethanol and ether. After mixing with air, it forms an explosive mixture. Exist in natural gas and petroleum pyrolysis gas. The chemical properties are stable and chemical reactions are not easy to occur. Used as refrigerant, internal combustion engine fuel or organic synthesis raw material.