glyceryl tristearate
Also known as tristearin, tristearoyl-sn-glycerol, Stearic acid triglycerin ester, Trioctadecanoin, stearin, TG(18:0/18:0/18:0), 2,3-di(octadecanoyloxy)propyl octadecanoate
Stearin , or tristearin, or glyceryl tristearate is an odourless, white powder. It is a triglyceride derived from three units of stearic acid. Most triglycerides are derived from at least two and more commonly three different fatty acids. Like other triglycerides, stearin can crystallise in three polymorphs. For stearin, these melt at (α-form), , and (β-form).
Chemical data
- Formula
- C57H110O6
- Molecular weight
- 891.5 g/mol
- IUPAC name
- 2,3-di(octadecanoyloxy)propyl octadecanoate
- SMILES
- CCCCCCCCCCCCCCCCCC(=O)OCC(COC(=O)CCCCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCCCC
- InChIKey
- DCXXMTOCNZCJGO-UHFFFAOYSA-N
- XLogP
- 25.2
- Polar surface area
- 78.9 Ų
- H-bond donors
- 0
- H-bond acceptors
- 6
- Formal charge
- 0
via PubChem
Wikidata facts
- Image
- Stearin krystalický.JPG
Article
4 sectionsContents
- Occurrence
- Uses
- See also
- References
Stearin , or tristearin, or glyceryl tristearate is an odourless, white powder. It is a triglyceride derived from three units of stearic acid. Most triglycerides are derived from at least two and more commonly three different fatty acids. Like other triglycerides, stearin can crystallise in three polymorphs. For stearin, these melt at (α-form), , and (β-form).
Note that stearin is also used to mean the solid component of an oil or fat that can be separated into components that melt at higher (the stearin) and lower (the olein) temperatures. This is the usage meant in an example such as palm stearin.