- Sorbitan tristearate
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Sorbitan tristearate[1] 
Octadecanoic acid [(2R,3S,4R)-2-[1,2-bis(1-oxooctadecoxy)ethyl]-4-hydroxy-3-tetrahydrofuranyl] esterOther namesSorbitan trioctadecanoate
E492
Anhydrosorbitan tristearate
Anhydrosorbitol tristearateIdentifiers CAS number 26658-19-5 
PubChem 62815 EC number 247-891-4 Jmol-3D images Image 1 - CCCCCCCCCCCCCCCCCC(=O)OCC([C@@H]1[C@H]([C@@H](CO1)O)OC(=O)CCCCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCCCC
Properties Molecular formula C60H114O8 Molar mass 963.54 g/mol Appearance Waxy solid 
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Sorbitan tristearate is a nonionic surfactant. It is variously used as a dispersing agent, emulsifier, and stabilizer, in food and in aerosol sprays. As a food additive, it has the E number E492. Brand names for Polysorbates include Alkest, Canarcel and Span.
The consistency of sorbitan tristearate is waxy; its color is light cream to tan.
Sorbitan tristearate is a mixture of the partial esters of sorbitol and its anhydrides with stearic acid. It is produced by the esterification of sorbitol with commercial stearic acid derived from food fats and oils and consists of approximately 95% of a mixture of the esters of sorbitol and its mono- and dianhydrides. Appearance: Sorbitan tristearate is a light cream to tan-coloured, hard, waxy solid with a slight characteristic odour and bland taste. Solubility: The product is insoluble in cold water and dispersible in edible oils.
See also
- Sorbitan monostearate (Span 60)
References
- ^ Sorbitan Tristearate, Joint Expert Committee on Food Additives
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