Database/Emollient/PPG-2 Myristyl Ether Propionate
Mostly natural · ISO 16128

Is PPG-2 Myristyl Ether Propionate natural?

Mostly. The myristyl (C14) fatty-alcohol portion is oleochemical and natural, while the propylene-oxide chain and the propionate ester cap are both petrochemical fragments by this site's convention.

INCI namePPG-2 Myristyl Ether Propionate
CAS74775-06-7
FormulaC23H46O4 · 386.6 Da
FunctionEmollient · Skin Conditioning
FeedstockMade by reacting myristyl alcohol, typically from coconut…

How we scored it

Tetradecyl(myristyl)oxy C14H29O=213.4 Da natural (oleochemical). PPG-2 chain + propionate ester cap C9H17O3=173.2 Da petrochemical (propylene oxide + propionyl cap). 213.4/386.6=0.55.
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 myristyl alcohol, typically from coconut or palm kernel oil, with petrochemical propylene oxide, then esterifying the chain end with propionic acid. No natural-origin alternative exists for the PPG or propionate steps.

In plain English

This emollient combines myristyl alcohol (from coconut or palm oil) with two petroleum-derived propylene oxide units and a propionic acid ester cap. It softens and conditions skin in creams and lotions.

CosIng definition: Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-(1-oxopropyl)-.omega.-(tetradecyloxy)-

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Structure

2D structure of PPG-2 Myristyl Ether Propionate

1-(1-tetradecoxypropan-2-yloxy)propan-2-yl propanoate

PubChem CID 121494098 ↗

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. 2PPG-2 Myristyl Ether Propionate. PubChem CID 121494098. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3PPG-2 MYRISTYL ETHER PROPIONATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4PPG-2 MYRISTYL ETHER PROPIONATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PPG-2%20MYRISTYL%20ETHER%20PROPIONATE