<unk>  is a chemical compound also commonly called<unk> lycerin or<unk> lycerine. It is a colorless, odorless, viscous liquid that is widely used in pharmaceutical formulations.<unk>  is a sugar alcohol, and is sweet-tasting and of low toxicity.<unk>  has three hydrophilic alcoholic hydroxyl<unk> roups that are responsible for its solubility in water and its hygroscopic nature.  Its surface tension is 64.00 mN/m at 20 °C , and it has a temperature coefficient of -0.0598 mN/(m K). The<unk>  substructure is a central component of many lipids.
Glycerol
Glycerin
Cholesterol
Stearic acid
Choline
Diol
Oleic acid
Cyanic acid