Database/Skin Conditioning/Sorbitan Sesquicaprylate
100% natural origin · ISO 16128

Is Sorbitan Sesquicaprylate natural?

Yes. Both building blocks, sorbitol-derived sorbitan and coconut-derived caprylic acid, are natural origin.

INCI nameSorbitan Sesquicaprylate
CAS91844-53-0
FormulaC14H28O8 · 324.37 Da
FunctionSkin Conditioning · Cleansing Surfactant
FeedstockMade by dehydrating natural sorbitol (from glucose) to…

How we scored it

Ester of sorbitan (from sorbitol, natural sugar-alcohol) and caprylic acid (natural C8 fatty acid); condensation water not counted → 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

Made by dehydrating natural sorbitol (from glucose) to sorbitan, then esterifying with coconut-derived caprylic acid. No petrochemical route is significant.

In plain English

A gentle emulsifier and thickener made from plant sugar and coconut fatty acid. It helps stabilise creams and lotions and is fully plant/oleochemical derived.

CosIng definition: Sorbitan Sesquicaprylate is a mixture of mono and diesters of Caprylic Acid and hexitol anhydrides derived from sorbitol

Structure

2D structure of Sorbitan Sesquicaprylate

[(2R,3S,4R,5R)-1,2,3,4,5,6-hexahydroxyhexyl] octanoate

PubChem CID 87090353 ↗

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 Sesquicaprylate. PubChem CID 87090353. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3SORBITAN SESQUICAPRYLATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4SORBITAN SESQUICAPRYLATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SORBITAN%20SESQUICAPRYLATE