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 →
Auto-generated CPSR Part A draft with source citations
Function
Skin Conditioning
Safety Rating
MODERATE
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
Expert Verdict
Expert safety assessment and concern-level summary for PEG-9 Trimethylolpropane Triacrylate.
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:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
Related Ingredients
1-Methylhydantoin-2-imide (Creatinine)
Excellent
Same category
Skin conditioning (skin brightening/l...
4-Amino-3-Hydroxybutyric Acid
Excellent
Same category
Skin Conditioning
Acetyl Glycyl Beta-Alanine
Excellent
Same category
Skin conditioning agent with melanin ...
Acetyl Tripeptide-1
Excellent
Same category
Skin Conditioning
Acetylneuraminic Acid
Excellent
Same category
Skin Conditioning, Skin Protecting
Acetylphytosphingosine
Excellent
Same category
Skin Conditioning, Hair Conditioning;...
(20S)-Protopanaxadiol
Moderate
Similar safety
(Cryptomeria Japonica/Chamaecyparis Obtusa) Stem Ferment Extract
Moderate
Similar safety
Antimicrobial, antioxidant, humectant
(Licorice/Reynoutria Japonica) Root/Stem Extract
Moderate
Similar safety
Skin conditioning, antioxidant
(SH-Pentapeptide-10 6-Aminocaprooyl SH-Pentapeptide-11) SP
Moderate
Similar safety
Skin/hair conditioning (peptide-based...
1,2,3,4,4a,5,6,7-Octahydro-2,5,5-Trimethyl-2-Naphthol
Moderate
Similar safety
Fragrance ingredient
1,2,3,4,4a,7,8,8a-Octahydro-2,4a,5,8a-Tetramethyl-Naphthyl Formate
Moderate
Similar safety
Fragrance ingredient
PEG-15 TRIMETHYLOLPROPANE TRIACRYLATE
Good
Chemical family
Binding, Film Forming
PEG-3 TRIMETHYLOLPROPANE TRIACRYLATE
Good
Chemical family
Binding, Film Forming
PEG-4 TRIMETHYLOLPROPANE TRIACRYLATE
Good
Chemical family
Film Forming
Is PEG-9 Trimethylolpropane Triacrylate in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for PEG-9 Trimethylolpropane Triacrylate in your formulation.