Glycerol, also known as glycerin, is a simple triol compound with the chemical formula C3H8O3. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. Glycerol is widely used in the food industry as a sweetener and humectant, in pharmaceuticals as a solvent and lubricant, and in cosmetics for its moisturizing properties. It occurs naturally in all lipids and is a backbone of triglycerides. Industrially produced via hydrolysis of fats or fermentation, it has a high boiling point and is hygroscopic. Its three hydroxyl groups enable extensive hydrogen bonding, contributing to its solubility in water and alcohols. Glycerol serves as a precursor for nitroglycerin and is essential in lipid metabolism.