Sorbitan monostearate

Sorbitan monostearate

Names
IUPAC name Octadecanoic acid [2-[(2R,3S,4R)-3,4-dihydroxy-2-tetrahydrofuranyl]-2-hydroxyethyl] ester
Identifiers
CAS Registry Number	citation needed] 1338-41-6  Y
ChemSpider	16736467 Y
InChI InChI=1S/C24H46O6/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-22(27)29-19-21(26)24-23(28)20(25)18-30-24/h20-21,23-26,28H,2-19H2,1H3/t20-,21+,23+,24+/m0/s1 Y Key: HVUMOYIDDBPOLL-XWVZOOPGSA-N Y InChI=1/C24H46O6/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-22(27)29-19-21(26)24-23(28)20(25)18-30-24/h20-21,23-26,28H,2-19H2,1H3/t20-,21+,23+,24+/m0/s1 Key: HVUMOYIDDBPOLL-XWVZOOPGBK
Jmol-3D images	Image
PubChem	16218600
SMILES O[C@H](COC(=O)CCCCCCCCCCCCCCCCC)[C@H]1OC[C@H](O)[C@H]1O
Properties
Chemical formula	C24H46O6
Molar mass	430.62 g/mol
Appearance	Waxy powder
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Sorbitan monostearate is an ester of sorbitan (a sorbitol derivative) and stearic acid and is sometimes referred to as a synthetic wax.^[1] It is primarily used as an emulsifier to keep water and oils mixed. Sorbitan monostearate is used in the manufacture of food and healthcare products and is a non-ionic surfactant with emulsifying, dispersing, and wetting properties . It is also employed to create synthetic fibers, metal machining fluid, and brighteners in the leather industry, and as an emulsifier in coatings, pesticides, and various applications in the plastics, food and cosmetics industries. Sorbitans are also known as "Spans".

Sorbitan monostearate has been approved by the European Union for use as a food additive (emulsifier) (E number: E 491) .

Compendial status

• British Pharmacopoeia ^[2]

References

1. ↑ Ingredients – Sorbitan Monostearate at sci-toys.com
2. ↑ The British Pharmacopoeia Secretariat (2009). "Index, BP 2009" (PDF). Retrieved 18 March 2010. 

http://www.inchem.org/documents/jecfa/jecmono/v05je47.htm

See also

• Acceptable daily intake
• Polysorbate
• Sorbitan tristearate (Span 65)
• Yeast