Substance profile
Acryloxypropyltrimethoxysilane
Acryloxypropyltrimethoxysilane is a substance with a harmonised classification under EU CLP.
01 · Identification
What Acryloxypropyltrimethoxysilane is
Acryloxypropyltrimethoxysilane is a substance with a harmonised classification under EU CLP.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Acryloxypropyltrimethoxysilane identifiers and molecular data
Acryloxypropyltrimethoxysilane CAS number and EC number
Other names for Acryloxypropyltrimethoxysilane
- acrylic acid, 3-(trimethoxysilyl)propyl ester
03 · GHS classification
Acryloxypropyltrimethoxysilane hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Acryloxypropyltrimethoxysilane pictograms and signal word
Acryloxypropyltrimethoxysilane hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - inhalation GHS chapter 3.1 | Category 4 | H332 | GHS07 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 1A or 1B or 1C | H314 | GHS05 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 3 | H412 | — |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Acryloxypropyltrimethoxysilane hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H332 | Harmful if inhaled. |
| H314 | Causes severe skin burns and eye damage. |
| H317 | May cause an allergic skin reaction. |
| H412 | Harmful to aquatic life with long lasting effects. |
This page lists only the codes assigned to Acryloxypropyltrimethoxysi…. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Acryloxypropyltrimethoxysi…
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Acryloxypropyltrimetho… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Acryloxypropyltrimethoxysilane precautionary statements
CLP Annex VI assigns 14 precautionary statements to Acryloxypropyltrimethoxysi…. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Acryloxypropyltrimethoxysilane name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | (3-(триметоксисилил)пропилов естер на акриловата киселина |
| Spanish español | Ácido acrílico, éster de 3-(trimetoxisilil)propilo |
| Czech čeština | 3-(trimethoxysilyl)propylester akrylové kyseliny |
| Danish dansk | acrylsyre, 3-(trimethoxysilyl)propylester |
| German Deutsch | Acrylsäure, 3-(Trimethoxysilyl)propylester |
| Estonian eesti | akrüülhappe 3-(trimetoksüsilüül)propüülester |
| Greek ελληνικά | 3-(τριμεθοξυσιλυλο)προπυλεστέρας του ακρυλικού οξέος |
| English English | acrylic acid, 3-(trimethoxysilyl)propyl ester |
| French français | acide acrylique, ester 3-(triméthoxysilyl)propylique |
| Croatian hrvatski | akrilna kiselina, 3-(trimetoksisilil)propil-ester |
| Italian italiano | 3-(trimetossisilil)propil estere dell'acido acrilico |
| Latvian latviešu | akrilskābes 3-(trimetoksisilil)propilesteris |
| Lithuanian lietuvių | akrilo rūgšties 3-(trimetoksisilil)propilesteris |
| Hungarian magyar | akrilsav, 3-(trimetoxiszilil)propil-észter |
| Maltese Malti | aċidu akriliku, ester ta’ 3-(trimetossisilil)propil |
| Dutch Nederlands | acrylzuur, 3-(trimethoxysilyl)propylester |
| Polish polski | 3-(trimetoksysilylo)akrylan propylu |
| Portuguese português | éster 3-(trimetoxissilil)propílico de ácido acrílico |
| Romanian română | ester 3-(trimetoxisilil)propilic al acidului acrilic |
| Slovak slovenčina | O -[3-(trimetoxysilyl)propyl]-akrylát |
| Slovenian slovenščina | 3-(trimetoksisilil)propilni ester akrilne kisline |
| Finnish suomi | akryylihappo, 3-(trimetoksisilyyli)propyyliesteri |
| Swedish svenska | akrylsyra, 3-(trimetoxisilyl)propylester |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Acryloxypropyltrimethoxysilane GHS label elements
Everything CLP Annex VI fixes for Acryloxypropyltrimethoxysi…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Acryloxypropyltrimethoxysilane
- Harmful if inhaled.
- Causes severe skin burns and eye damage.
- May cause an allergic skin reaction.
- Harmful to aquatic life with long lasting effects.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Use only outdoors or in a well-ventilated area.
- Contaminated work clothing should not be allowed out of the workplace.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF INHALED:
- Immediately call a POISON CENTER/doctor/…
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Do NOT induce vomiting.
- If skin irritation or rash occurs:
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Acryloxypropyltrimethoxysi… in the GHS label constructor →
07 · Transport
Acryloxypropyltrimethoxysilane UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Acryloxypropyltrimethoxysilane under UN 2218 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| ACRYLIC ACID, STABILIZED | 8 | CF1 | II | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 8 is “Corrosive substances” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Acrylic acid, stabilized | 8 | II | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 8 is “Corrosive material” (49 CFR 173.2).
08 · Questions
Acryloxypropyltrimethoxysilane — frequently asked questions
What is the CAS number of Acryloxypropyltrimethoxysilane?
The CAS number of Acryloxypropyltrimethoxysilane is 4369-14-6. Its EC number is 419-560-6.
What does a Acryloxypropyltrimethoxysilane label have to show?
Under CLP Annex VI the label for Acryloxypropyltrimethoxysilane carries the pictograms Corrosion and Exclamation mark and the signal word is Danger.
Is Acryloxypropyltrimethoxysilane flammable?
CLP Annex VI assigns Acryloxypropyltrimethoxysilane no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Acryloxypropyltrimethoxysilane a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Acryloxypropyltrimethoxysilane. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
Nearby
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