What does Trimethylolpropane triacrylate do?

Used in cosmetics as a hair conditioner, a hair fixative and a film former. Trimethylolpropane Triacrylate is the triester.

Is Trimethylolpropane triacrylate safe?

Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

beauty
industrial

Trimethylolpropane triacrylate

CAS 15625-89-5 · 100/100 · High conf.

Also registered as 15 other CAS numbers

36446-02-3 · 58998-51-9 · 72269-91-1 · 100465-65-4 · 116335-81-0 · 117079-82-0 · 159251-16-8 · 162193-38-6 · 199685-35-3 · 255831-11-9 · 352031-28-8 · 1186622-07-0 · 1199921-30-6 · 1325731-65-4 · 1798797-17-7

Trimethylolpropane triacrylate chemical structure

Concern score

100/100Critical concern based on regulatory listings.

High confidence

Trimethylolpropane triacrylate in plain language

What it is: Also known as 2,2-bis(prop-2-enoyloxymethyl)butyl prop-2-enoate · Mfm · Tmpta · 1,1,1-Trimethylolpropane triacrylate · 1,3-PROPANEDIOL, 2-ETHYL-2-(HYDROXYMETHYL)-, triacrylate · 2,2-Bis(Acryloyloxymethyl)Butyl Acrylate
Show all 22 names
2-Ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate · Acrylic acid, 1,1,1-(trihydroxymethyl)propane triester · Ageflex TMPTA · M 309 · NK Ester A TMPT · Ogumont t 200 · Saret 351 · Sartomer sr 351 · Setalux UV 2241 · Sr 351 · Trimethylol Propane triacrylate · Trimethylolpropane Triacrylate/2-Hydroxypropyl Acrylate · Trimethylopropane Tricacrylate · UNII-4B67KGL96S · Viscoat 295 · multifunctional acrylate
What it does: Used in cosmetics as a hair conditioner, a hair fixative and a film former. Trimethylolpropane Triacrylate is the triester.
Hair conditioning
Hair fixing
Film forming
Film former
Conditioner
Hair fixative
Is it a concern?: Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

2-ethyl-2-[[(1-oxoallyl)oxy]methyl]-1,3-propanediyl diacrylate; 2,2-bis(acryloyloxymethyl)butyl acrylate; trimethylolpropane triacrylate; is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

EU Annex II — prohibited
EU prohibited in cosmetics

Recorded in these product areas

Found in consumer products
Industrial

EUEC
Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
banned
View source →

EUCosIngActive2 entries
- Cosmetics Regulation annex II / ref 1718.Source →
- Trimethylolpropane Triacrylate is the triester that conforms to the formula: Restriction: II/1718Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 87 composition records across product categories including Construction and building materials, Raw materials, Electronics/small appliances. EPA CPDat classifies this chemical for functional uses including Film former, Softener and conditioner, Hair fixative.
- EPA CPDat observed this chemical in 87 composition records across product categories including Construction and building materials, Raw materials, Electronics/small appliances. EPA CPDat classifies this chemical for functional uses including Film former, Softener and conditioner, Hair fixative.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Trimethylolpropane triacrylate. 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 Trimethylolpropane triacrylate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EU CosIng Cosmetics Regulation Annexes
regulatory · updated 2023-09-25
Open →
EPA Chemical and Products Database
exposure · updated november 8, 2016
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

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

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Trimethylolpropane triacrylate in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Construction and building materialsRaw materialsElectronics/small appliancesHome maintenanceLaboratory supplies

Typical roles

Hair conditioningHair fixingFilm formingFilm formerConditionerHair fixative

See products using Trimethylolpropane triacrylate →