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Sorbitan Mono Stearate (E-491)

Sorbitan Mono Stearate (E-491)

CAS Number: 1338-41-6

Molecular Formula: C24H46O6

Purity: Summary: Sorbitan Mono Stearate (E-491) is a non-ionic emulsifier and surfactant used to stabilize oil-water mixtures in food, cosmetics, and pharmaceuticals. Often referred to as Span 60, it is produced by esterifying sorbitol with stearic acid. In the food industry, it is primarily used as a dough stabilizer, bloom retardant in chocolate, and a protectant for dry yeast cells. Typical specifications include a Hydrophilic-Lipophilic Balance (HLB) value of 4.7 and a melting point range of 49–65°C.

Common Fatty Acid: Stearic (C18)

About the product

Sorbitan Mono Stearate (CAS 1338-41-6) is a vital lipophilic emulsifier in the United States API intermediates market, where a Pharma/API purity of 99% is increasingly mandated by domestic CDMOs to ensure the stability of complex drug delivery systems and topical formulations. Span 60 serves as a high purity fine chemi...

Sorbitan Mono Stearate (E-491) Specifications

CAS Number

1338-41-6

Molecular Formula

C24H46O6

Molecular Weight

430.62 g/mol

IUPAC Name

[(2R)-2-[(2R,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] octadecanoate

Canonical SMILES

CCCCCCCCCCCCCCCCCC(=O)OC[C@H]([C@@H]1[C@@H]([C@H](CO1)O)O)O

InChI Key

HVUMOYIDDBPOLL-XWVZOOPGSA-N

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

PubChem CID

16218600

EINECS Number

215-664-9

MDL Number

MFCD00005366

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