Database/Emulsifying Surfactant/Sorbitan Dioleate
100% natural origin · ISO 16128

Is Sorbitan Dioleate natural?

Yes. Built from natural sorbitol-derived sorbitan and vegetable-oil oleic acid.

INCI nameSorbitan Dioleate
CAS29116-98-1
FormulaC42H76O7 · 693.0 Da
FunctionEmulsifying Surfactant
FeedstockSorbitol dehydrated to sorbitan, esterified with oleic acid…

How we scored it

Sorbitan (natural, from sorbitol) diesterified with oleic acid x2 (natural vegetable fatty acid). No petrochemical fragment. 1.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

How it’s made

Acid-catalysed ring closure of sorbitol (intramolecular SN2). Sorbitan is the ring at the core of every sorbitan ester and polysorbate. Each curved arrow moves one electron pair, and the film ends on the scores for the whole family.

Where it comes from

Sorbitol dehydrated to sorbitan, esterified with oleic acid from vegetable oil. Standard oleochemical process.

In plain English

An ester of plant-sugar-derived sorbitan and oleic acid, used as an emulsifier.

CosIng definition: Sorbitan, di-9-octadecenoate, (Z,Z)-

Structure

2D structure of Sorbitan Dioleate

[(2R)-2-[(2S,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-[(Z)-octadec-9-enoyl]oxyethyl] (Z)-octadec-9-enoate

PubChem CID 22833309 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Sorbitan Dioleate. PubChem CID 22833309. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3SORBITAN DIOLEATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4SORBITAN DIOLEATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SORBITAN%20DIOLEATE