C2H4O, commonly known as ethanol or ethyl alcohol, is a colorless, volatile liquid with a characteristic odor. It is the type of alcohol found in alcoholic beverages and is produced through the fermentation of sugars by yeast. Ethanol is also used as a solvent, in the manufacture of personal care products, and as a fuel additive in the form of gasohol. In addition to its use in beverages, ethanol has various industrial applications. It serves as a key ingredient in the production of acetaldehyde, which is used in the synthesis of plastics and other chemicals. Ethanol is also recognized for its antiseptic properties, making it a common component in hand sanitizers and disinfectants.