Glyoxal is a simple organic compound with the chemical formula C2H2O2. It appears as a colorless liquid and has a strong, pungent odor. Glyoxal is primarily used in the production of various chemicals, including antiseptics and resins, and serves as a building block in organic synthesis. In addition to its industrial applications, glyoxal is also found in some natural processes and can be produced through the oxidation of ethylene glycol. It is important to handle glyoxal with care, as it can be irritating to the skin and eyes, and may pose health risks if inhaled or ingested.