Ethanal, also known as Acetaldehyde, is a colorless and flammable liquid that is widely used in the manufacturing of various chemicals and solvents. Synonyms for the term "ethanal" include acetic aldehyde, ethanol-derived aldehyde, acetic acid aldehyde, and methylformaldehyde. Acetaldehyde is produced naturally in the human body as a by-product of alcohol metabolism, and excessive exposure can cause a range of health problems. It is also a key ingredient in the production of polyvinyl acetate, polyester resins, synthetic rubber, and other chemical products. Despite its widespread use, acetaldehyde is a highly volatile and reactive chemical, so it is important to use it with caution and follow appropriate safety protocols when handling or storing it.