Dicarbon hexahydride, also known as ethane, is a chemical compound with the molecular formula C₂H₆. It is a colourless gas at room temperature and pressure and has a sweet odour. Ethane is a hydrocarbon and is the second simplest member of the alkane family, after methane. It is found in natural gas and is also produced industrially. Ethane is used as a fuel, a feedstock for the petrochemical industry, and a refrigerant.