Is PEG-9 Trimethylolpropane Triacrylate safe in cosmetics?
PEG-9 Trimethylolpropane Triacrylate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
MODERATE
Cosmetic Ingredient
PEG-9 Trimethylolpropane Triacrylate
Also known as: Poly(oxy-1,2-ethanediyl),alpha-hydro-omega-[(1-oxo-2-propen-1-yl)oxy]-, ether with 2-ethyl-2--(hydroxymethyl)-1,3-propanediol (3:1), Trimethylolpropane polyethylene glycol ether (1:3) triacrylate, Poly(ethoxylated trimethylolpropane triacrylate), Oxyethylated trimethylolpropane triacrylate, Poly(oxy-1,2-ethanediyl), alpha-hydro-omega-((1-oxo-2-propenyl)oxy)-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1) (+2 more)
INCI: PEG-9 TRIMETHYLOLPROPANE TRIACRYLATE
PEG-9 Trimethylolpropane Triacrylate (CAS 28961-43-5) is a cosmetic cosmetic ingredient functioning as Skin Conditioning. NOAEL 75 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 28961-43-5 →
Function
Skin Conditioning
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Chemistry & Identifiers
IUPAC Name
2-[2,2-bis(2-prop-2-enoyloxyethoxymethyl)butoxy]ethyl prop-2-enoate
InChIKey
MTPIZGPBYCHTGQ-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted for cosmetic use; acrylates copolymers class reviewed by CIR
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for PEG-9 Trimethylolpropane Triacrylate.
Calculate MoS for your specific formulation with the MoS Calculator.
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for PEG-9 Trimethylolpropane Triacrylate across SCCS product categories, with measured dermal absorption where available.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
10,000 - 100,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Binder
Film former
Hardener
Softener and conditioner
Editorial summary
Preliminary editorial summary for PEG-9 Trimethylolpropane Triacrylate — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
potential-allergen
peg-ingredient
Known Synonyms
Poly(oxy-1,2-ethanediyl),alpha-hydro-omega-[(1-oxo-2-propen-1-yl)oxy]-, ether with 2-ethyl-2--(hydroxymethyl)-1,3-propanediol (3:1)
Trimethylolpropane polyethylene glycol ether (1:3) triacrylate
Poly(ethoxylated trimethylolpropane triacrylate)
Oxyethylated trimethylolpropane triacrylate
Poly(oxy-1,2-ethanediyl), alpha-hydro-omega-((1-oxo-2-propenyl)oxy)-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1)
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-[(1-oxo-2-propen-1-yl)oxy]-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1)
Trimethylolpropane ethoxytriacrylate
Chemical Function
Film former
Softener and conditioner
Binder
Australian Status
AICIS status: listed
Frequently Asked Questions
Is PEG-9 Trimethylolpropane Triacrylate allowed in the EU?
PEG-9 Trimethylolpropane Triacrylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does PEG-9 Trimethylolpropane Triacrylate do in cosmetics?
PEG-9 Trimethylolpropane Triacrylate functions as: Skin Conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 28961-43-5.
Is PEG-9 Trimethylolpropane Triacrylate used outside cosmetics?
PEG-9 Trimethylolpropane Triacrylate also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check PEG-9 Trimethylolpropane Triacrylate compliance across multiple jurisdictions:
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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PEG-15 TRIMETHYLOLPROPANE TRIACRYLATE
GOOD
Chemical family
Binding, Film Forming
PEG-3 TRIMETHYLOLPROPANE TRIACRYLATE
GOOD
Chemical family
Binding, Film Forming
PEG-4 TRIMETHYLOLPROPANE TRIACRYLATE
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Chemical family
Film Forming
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