Database/Emollient/PPG-23 Oleyl Ether
Mostly petroleum · ISO 16128

Is PPG-23 Oleyl Ether natural?

Mostly not. Oleyl fatty alcohol is oleochemical; 23 moles of petrochemical propylene oxide dominate the molecule's mass.

INCI namePPG-23 Oleyl Ether
CAS52581-71-2
FunctionEmollient · Skin Conditioning
FeedstockOleochemical oleyl alcohol is propoxylated with about 23…

How we scored it

Name indicates 23 mol PO; given formula (MW 326.6) matches only a 1-PO adduct. Oleyl alcohol 268.5(natural)+23 POx58.1=1335.8(petrochemical) → 1604.3 total; 268.5/1604.3 → 0.17
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

Oleochemical oleyl alcohol is propoxylated with about 23 moles of petrochemical propylene oxide. The supplied formula represents only a single-PO adduct, not the true 23-PO average structure.

In plain English

An emollient made from a plant-derived unsaturated fatty alcohol reacted with about 23 units of propylene oxide, a petroleum-based chemical. Softens and conditions skin.

CosIng definition: Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-9-octadecenyl-.omega.-hydroxy-, (Z)-

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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-23 OLEYL ETHER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3PPG-23 OLEYL ETHER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PPG-23%20OLEYL%20ETHER