Glycerol (or Glycerine) is a three carbon backbone alcohol. Structurally glycerol has three hydroxyl groups. This hydroxyl arrangement means that the molecule is highly hydrophillic . The official IUPAC name for this compound is Propan-1,2,3-triol. It preforms a vital function as an organic molecule for it forms the backbone of most triglycerides (lipids) in biological organisms. these molecules are formed by a condenstaion (esterification) reation with three long chain carboxylic acids.