Acetaldehyde is a colorless, volatile liquid that has a strong, fruity odor. It is an organic compound with the chemical formula C2H4O and is commonly found in various natural sources, including ripe fruits and fermented beverages like wine and beer. Acetaldehyde is also produced in the body during the metabolism of alcohol, making it a significant compound in understanding alcohol's effects. In addition to its presence in nature, acetaldehyde is used in the production of various chemicals and plastics. It serves as an important intermediate in the synthesis of acetic acid and other compounds. However, exposure to high levels of acetaldehyde can be harmful, as it is classified as a potential carcinogen, raising concerns about its impact on health.