What does it do in cosmetics?

All ingredients

Ingredient Dictionary

ACRYLOYLOXY PROPYLTRIMETHOXYSILANE

Cosmetic roles

Base that dissolves other ingredientsSOLVENT

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

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

Official labels & definitions

JCIA labelling name アクリロイルオキシプロピルトリメトキシシラン: 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

ACRYLOYLOXY PROPYLTRIMETHOXYSILANEINCIアクリロイルオキシプロピルトリメトキシシランJapanese labelling name

CAS No.chemical registry number: 4369-14-6
DTXSIDUS EPA chemical ID: DTXSID6063436
DTXCIDUS EPA compound ID: DTXCID7040281

IUPAC: 3-(Trimethoxysilyl)propyl prop-2-enoate
Molecular formula: C9H18O5Si
Molecular weight: 234.323 g/mol

Measured properties

Appearance: liquid
Melting/freezing point: -20 ℃(1013 hPa)
Initial boiling point and range: 174~241 ℃ (101.3 kPa)
Flash point: 109 ℃
Flammability (solid, gas): not flammable
Vapour pressure: 20.5 ㎩ (25℃)
Water solubility: 5.8 ㎎/ℓ (20℃)
Vapour density: 1.055 g/㎤ (25℃)
Relative density: 1.06
n-Octanol/water partition coefficient (Kow): 2.18 (log Pow, 23℃)
Auto-ignition temperature: 256 ℃ (101.325 kPa)
Molecular weight: 234.32

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: KOSHA safety data sheets (Korea)

What products actually use it for

What the 14 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.

Adhesion/cohesion promoter8
Chemical reaction regulator3
Solvent2
Wetting agent (non-aqueous)1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 0 eye studies are on record.

Classed as highly irritating1Classed as moderate1

The studies disagree (the most common conclusion covers 50%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 4 studies

Skin Sens. 1
Skin Sensitization · Authoritative
Ambiguous
skin sensitisation: in vivo (non-LLNA) · Screening · according to EPA OTS 798.4100 (Skin Sensitisation)
Corrosive
skin irritation: in vivo · Screening · EPA OTS 798.4470 (Acute Dermal Irritation) according to
Skin Corr. 1B
Skin Irritation · Authoritative