Dimethyl ether (DME) is a colorless gas at room temperature and is the simplest form of ether. It has the chemical formula C2H6O and is produced from natural gas, biomass, or through the methanol dehydration process. DME is used as a propellant in aerosol products and as a potential alternative fuel due to its clean-burning properties. As a fuel, dimethyl ether can be used in diesel engines and has a higher energy density than liquefied petroleum gas (LPG). Its combustion produces minimal pollutants, making it an attractive option for reducing emissions. DME is also being explored for use in fuel cells and as a refrigerant.