DEG stands for Diethylene Glycol, which is a colorless, odorless, and hygroscopic liquid with a sweet taste. It is commonly used as a solvent, a plasticizer, and a humectant in various industrial and commercial applications.RIL likely stands for Reliance Industries Limited, which is a large Indian conglomerate that produces a variety of products, including chemicals, textiles, and petroleum. The product you are referring to may be produced or sold by this company.