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Lipid is the collective name for fats, oils, waxes and fat-like molecules (such as steroids) found in the body. protection, waterproofing, insulation and buoyancy agents. The basic unit of lipids is a triglyceride, synthesised from glycerol (propane-1,2,3-triol) and fatty acids. Glycerol is a type of alcohol. Alcohols are organic compounds. Their molecules are characterised by hydroxyl groups, -OH. Glycerol is a trihydric alcohol, which means each molecule has three hydroxyl groups.
Glycerol, also referred to as glycerin or glycerine, is a chemical compound that is a generally nontoxic, sweet-tasting viscous liquid. When we say viscous, this term means that the substance is a liquid with a thick and sticky consistency. The formula for glycerol is C3H8O3. It has 3 carbon (C) atoms, 8 hydrogen (H) atoms, and 3 oxygen (O) atoms. In this image, you can see the appearance of glycerol and its chemical formula and structure. The chemical structure of glycerol shows that each carbon atom is bonded to an -OH group.