Database/Anti-Seborrheic/Undecylenamide DEA
Mostly natural · ISO 16128

Is Undecylenamide DEA natural?

Mostly. Undecylenic acid comes from pyrolysis of natural castor-oil ricinoleic acid; diethanolamine head group is petrochemical.

INCI nameUndecylenamide DEA
CAS25377-64-4
FormulaC15H29NO3 · 271.40 Da
FunctionAnti-Seborrheic · Antimicrobial
FeedstockMade by reacting undecylenic acid, obtained by cracking…

How we scored it

Undecylenic acid (castor-oil pyrolysis product) acyl C11H19O 167.3 Da + diethanolamine residue C4H10NO2 104.1 Da (minus water) = 271.4 Da. 167.3/271.4 = 0.62.
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

Made by reacting undecylenic acid, obtained by cracking castor oil's ricinoleic acid, with diethanolamine, a synthetic amine from ethylene oxide and ammonia. No significant alternative route exists.

In plain English

A foaming, antistatic and antimicrobial ingredient made from undecylenic acid, derived from castor oil, combined with a lab-made compound (diethanolamine). Used in cleansers and anti-dandruff products.

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Structure

2D structure of Undecylenamide DEA

N,N-bis(2-hydroxyethyl)undec-10-enamide

PubChem CID 108909 ↗

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. 2Undecylenamide DEA. PubChem CID 108909. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3UNDECYLENAMIDE DEA. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4UNDECYLENAMIDE DEA. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=UNDECYLENAMIDE%20DEA