Database/Cleansing/Disodium Undecylenamido MEA-Sulfosuccinate
Mostly natural · ISO 16128

Is Disodium Undecylenamido MEA-Sulfosuccinate natural?

Mostly. Undecylenic acid from castor oil is amidated to ethanolamine, then half-esterified with petrochemical maleic anhydride and sulfonated; sulfonate/sodium count as natural minerals.

INCI nameDisodium Undecylenamido MEA-Sulfosuccinate
CAS26650-05-5
FormulaC17H27NNa2O8S · 451.4 Da
FunctionCleansing · Foam Boosting Surfactant
FeedstockCastor oil-derived undecylenic acid is amidated with ethanolamine…

How we scored it

Undecylenoyl (castor-derived, natural) C11H19O 167 Da + SO3+2Na (mineral, natural) 126 Da = 293 Da; MEA-ethylene+succinate backbone (petrochemical) 158 Da -> 293/451.4=0.65.
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

Castor oil-derived undecylenic acid is amidated with ethanolamine (from petrochemical ethylene oxide/ammonia), then reacted with maleic anhydride and sodium bisulfite to form the sulfosuccinate. The fatty chain is natural; the ethanolamine and succinate backbone are petrochemical.

In plain English

A mild, foam-boosting surfactant used in cleansers. It combines undecylenic acid from castor oil with petrochemical ethanolamine and a sulfosuccinate group.

CosIng definition: Disodium Undecylenamido MEA-Sulfosuccinate is the disodium salt of a substituted ethanolamide half ester of sulfosuccinic acid. It conforms to the formula:

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Structure

2D structure of Disodium Undecylenamido MEA-Sulfosuccinate

disodium;4-oxo-2-sulfonato-4-[2-(undec-10-enoylamino)ethoxy]butanoate

PubChem CID 117833 ↗

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. 2Disodium Undecylenamido MEA-Sulfosuccinate. PubChem CID 117833. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3DISODIUM UNDECYLENAMIDO MEA-SULFOSUCCINATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4DISODIUM UNDECYLENAMIDO MEA-SULFOSUCCINATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=DISODIUM%20UNDECYLENAMIDO%20MEA-SULFOSUCCINATE