Ingredient Dictionary

TRIMETHYLOLPROPANE TRIMETHACRYLATE

Trimethylolpropane trimethacrylate is a carbonyl compound.

How much products actually contain

No product states its amount yet.

Of the products containing it, 3 list it before the 1% line and 0 after it (usually 1% or less).

Products using this ingredient

3 of 3 confirmed · likeliest to carry enough first

Definition

Trimethylolpropane trimethacrylate is a carbonyl compound.

Source: PubChem

US FDA substance register · UNII S734UC120F · registered name TRIMETHYLOLPROPANE TRIMETHACRYLATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Leaves a thin film where appliedFILM FORMING

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

Reviewed by CIR: Methacrylate Ester Monomers

Source: US Cosmetic Ingredient Review (CIR)

Reviewed by CIR: Final Report on the Safety Assessment of Methacrylate Ester Monomers Used in Nail Enhancement Products

Source: US Cosmetic Ingredient Review (CIR)

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name トリメタクリル酸トリメチロールプロパン: 本品は、次の化学式で表される有機化合物である。

Source: JCIA labelling names (Japan)

Names & identifiers

TRIMETHYLOLPROPANE TRIMETHACRYLATEINCI트라이메틸올프로판트라이메타크릴레이트Korean label name (MFDS standard)2-Propenoic acid, 2-methyl-, 2-ethyl-2-[[(2-methyl-1-oxo-2-propenyl)oxy]methyl]-1,3-propanediyl esterSynonymトリメタクリル酸トリメチロールプロパンJapanese labelling name

CAS No.chemical registry number: 3290-92-4
EC No.EU chemical inventory number: 221-950-4
DTXSIDUS EPA chemical ID: DTXSID3027530
DTXCIDUS EPA compound ID: DTXCID607530

IUPAC: 2,2-Bis{[(2-methylprop-2-enoyl)oxy]methyl}butyl 2-methylprop-2-enoate (non-preferred name)
Molecular formula: C18H26O6
Molecular weight: 338.4 g/mol

Measured properties

Appearance: Liquid, Dry Powder · Amber liquid with a musty odor, [AIHA] Yellow viscous liquid, [Alfa Aesar MSDS]
Melting/freezing point: -10 ℃
Flash point: 174 ℃
Vapour pressure: 0.000137 ㎜Hg(at 25 ℃)
Water solubility: 13 ㎎/ℓ(at 25 ℃)
Vapour density: 11.7
Relative density: 1.067 (at 20/4 ℃)
n-Octanol/water partition coefficient (Kow): 4.39
Decomposition temperature: 166.3~166.9 ℃
Molecular weight: 338

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 22 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Chemical reaction regulator8
Adhesion/cohesion promoter2
Film former2
Intermediate2
Degradant/impurity (EPA)2
Photosensitive agent2
Hardener1
Polymerization promoter1

2 other uses

Catalyst1
Monomers1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 3 eye studies are on record.

Classed as low5

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 8 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · equivalent or similar to OECD Guideline 406 (Skin Sensitisation)
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation)
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Category 6.3A (Category 2)
Skin Irritation · Read Across
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) equivalent or similar to