The chemical formula for ethanol is C2H5OH. Ethanol, also known as ethyl alcohol, is a clear, volatile liquid that is widely used as an alcoholic beverage, solvent, and fuel additive. It is produced through the fermentation of sugars by yeast and is a key ingredient in alcoholic drinks such as beer, wine, and spirits. Ethanol’s structure consists of two carbon atoms, six hydrogen atoms, and one hydroxyl group (OH), reflecting its classification as an alcohol. Its properties make it useful in various industries, including pharmaceuticals, cosmetics, and as a renewable energy source in the form of biofuel.