Ethylene glycol heavy ends, with the chemical formula C2H6O2, is a colorless, odorless, viscous liquid. It is primarily used as a solvent, reaction intermediate, and coolant. Industrially, ethylene glycol heavy ends is widely employed in the production of coatings, resins, antifreeze, and plastics. Additionally, it serves as an additive in the pharmaceutical, cosmetic, and food industries. In some cases, it is also used as a component in fuels and fog generators.