Diethylene glycol is a stable compound that is stable to air and water. It can react with many organic compounds, such as anhydrides, aldehydes, ketones, etc.

Industrial use: Diethylene glycol is widely used in industries such as pharmaceuticals, coatings, plastics, resins, rubber, solvents, dyes, and inks, as a plasticizer, antifreeze agent, solvent, wetting agent, adhesive, etc.