Molekula
3-Acryloxypropyl(trimethoxy)silane (stabilized with BHT)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3-Acryloxypropyl(trimethoxy)silane (stabilized with BHT) is a silane coupling agent used to improve adhesion between organic polymers and inorganic substrates in coatings, adhesives, and composites. It features a reactive acrylate group and three methoxy groups for crosslinking. CAS: 4369-14-6, molecular formula: H2C=CHCO2(CH2)3Si(OCH3)3, molecular weight: 234.32 g/mol. Store refrigerated at 2 to 8 °C. Signal word: Danger. Molekula supplies 3-Acryloxypropyl(trimethoxy)silane (stabilized with BHT) from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear liquid |
| Boiling Point | 68 Deg C |
| Stabiliser | BHT 50ppm |
| Assay GC | >97% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 123 °C |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89997446 |
| CAS Number | 4369-14-6 |
| IUPAC Name | 3-trimethoxysilylpropyl prop-2-enoate |
| EC Number | 419-560-6 / 610-134-7 |
| Molecular Formula | C9H18O5Si |
| Molecular Weight | 234.32 |
| Exact Mass | 234.0924 |
| SMILES | CO[Si](CCCOC(=O)C=C)(OC)OC |
| InChIKey | KBQVDAIIQCXKPI-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H18O5Si/c1-5-9(10)14-7-6-8-15(11-2,12-3)13-4/h5H,1,6-8H2,2-4H3 |
| PubChem CID | 151204 |
| UN Number | UN1760 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931.90.9010 |
| Tariff Code | 2931900090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
- H332 Harmful if inhaled
- H335 May cause respiratory irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+P352 IF ON SKIN: Wash with soap and water
- P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2-Propenoic acid, 3-(trimethoxysilyl)propyl ester
- 3-(Acryloyloxy)propyltrimethoxysilane
- 3-(Trimethoxysilyl)propyl 2-propenoate
- 3-(Trimethoxysilyl)propyl acrylate
- 3-Acryloxypropyltrimethoxysilane
- 3-Acryloxypropyltrimethoxysilane, stab. with 100ppm BHT
- 3-AOPTMS
- 3-trimethoxysilylpropyl prop-2-enoate
- acrylic acid, 3-(trimethoxysilyl)propyl ester
- acryloxypropyltrimethoxysilane
Frequently asked questions
What is 3-Acryloxypropyl(trimethoxy)silane used for?
It is used as a coupling agent in adhesives, coatings, and composites to improve adhesion between organic materials and inorganic substrates.
What is the chemical formula and molecular weight?
The formula is H2C=CHCO2(CH2)3Si(OCH3)3 with a molecular weight of 234.32 g/mol.
How should this product be stored?
Store refrigerated at 2 to 8 °C; keep away from heat and incompatible materials.
What grade is available?
Available as a stabilized grade with BHT; purity is typically 98% minimum.
Can Molekula supply this in bulk?
Yes, Molekula can supply this product in bulk quantities; please contact sales for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.