Database/Emollient/Trimethylolpropane Triisostearate
Mostly natural · ISO 16128

Is Trimethylolpropane Triisostearate natural?

Mostly. Isostearic acid is oleochemical; trimethylolpropane is a synthetic petrochemical triol made from butyraldehyde and formaldehyde.

INCI nameTrimethylolpropane Triisostearate
CAS68541-50-4
FormulaC60H116O6 · 933.6 Da
FunctionEmollient · Skin Conditioning
FeedstockTriester of oleochemical isostearic acid with trimethylolpropane, a…

How we scored it

3x isostearoyl C18H35O 267.5 Da each = 802.4 Da (natural, oleochemical) + trimethylolpropane core C6H11O3 131.2 Da (petrochemical). 802.4/933.6=0.86.
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.

Where it comes from

Triester of oleochemical isostearic acid with trimethylolpropane, a synthetic petrochemical triol. The fatty-acid mass dominates the molecule, giving a mostly-renewable result.

In plain English

A rich emollient ester combining a synthetic branching alcohol (trimethylolpropane) with vegetable-oil-derived isostearic acid. It adds cushion and a smooth, non-greasy after-feel to creams.

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Structure

2D structure of Trimethylolpropane Triisostearate

2,2-bis(16-methylheptadecanoyloxymethyl)butyl 16-methylheptadecanoate

PubChem CID 110529 ↗

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. 2Trimethylolpropane Triisostearate. PubChem CID 110529. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3TRIMETHYLOLPROPANE TRIISOSTEARATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4TRIMETHYLOLPROPANE TRIISOSTEARATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TRIMETHYLOLPROPANE%20TRIISOSTEARATE