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GREENVEIL

  • beauty
  • industrial

POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI)

CAS 178254-04-1

Concern score

Not assessed — no hazard data yet.

POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI) in plain language

What it is

On cosmetic ingredient lists it appears as “PEG-20 hexadecenylsuccinate”.

Also known as PEG-20 hexadecenylsuccinate

What it does

Used in cosmetics as an emulsifier.

  • Emulsifying
  • Emulsifier
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI) appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActivePoly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, monoester with 2-hexadecenylbutanedioic acid (20 mol EO average molar ratio)
    • Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, monoester with 2-hexadecenylbutanedioic acid (20 mol EO average molar ratio)Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Emulsifier.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Emulsifier.Source →

Expert safety opinions

No expert opinion on file for POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI). These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI) yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated 2019-12-20

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI) in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

Typical roles

EmulsifyingEmulsifier
See products using POLY(OXY-1,2-ETHANEDIYL), alpha-hydro-omega-hydroxy-, monoester with 2-HEXADECENYLBUTANEDIOIC acid (9CI) →