Molekula
3-Isocyanatopropyltriethoxysilane
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-Isocyanatopropyltriethoxysilane is a silane coupling agent used to improve adhesion between organic polymers and inorganic substrates in coatings, adhesives, and composites. It features an isocyanate functional group for reactivity with hydroxyl-containing surfaces. CAS: 24801-88-5, Molecular Formula: (C2H5O)3Si(CH2)3NCO, Molecular Weight: 247.36 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies 3-Isocyanatopropyltriethoxysilane 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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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
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.
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Specifications
| Property | Value |
|---|---|
| Appearance | Clear, colourless liquid |
| Refractive Index | 1.4190 - 1.4240 |
| Assay (GC) | ≥94.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 77 °C |
| Transport Class | 6.1 (8) |
| Packing Group | I |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 29909306 |
| CAS Number | 24801-88-5 |
| IUPAC Name | triethoxy(3-isocyanatopropyl)silane |
| EC Number | 246-467-6 |
| Molecular Formula | (C2H5O)3Si(CH2)3NCO |
| Molecular Weight | 247.36 |
| Exact Mass | 247.124 |
| SMILES | CCO[Si](CCCN=C=O)(OCC)OCC |
| InChIKey | FRGPKMWIYVTFIQ-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H21NO4Si/c1-4-13-16(14-5-2,15-6-3)9-7-8-11-10-12/h4-9H2,1-3H3 |
| PubChem CID | 90613 |
| UN Number | UN3390 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2931909010 |
| Tariff Code | 2931900028 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H312 Harmful in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
- H330 Fatal if inhaled
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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
- .GAMMA.-(TRIETHOXYSILYL)PROPYL ISOCYANATE
- .gamma.-Isocyanopropyltriethoxysilane
- 3-(ISOCYANOPROPYL)TRIETHOXYSILANE
- 3-(Triethoxysilyl)propyl isocyanate
- 3-ISOCYANANOPROPYLTRIETHOXYSILANE
- Isocyanic acid, 3-(triethoxysilyl)propylester
- Silane, triethoxy(3-isocyanatopropyl)-
- TRIETHOXY(.GAMMA.-ISOCYANATOPROPYL)SILANE
- Triethoxy(3-isocyanatopropyl)silane
- triethoxysilylpropyl isocyanate
Frequently asked questions
What is 3-Isocyanatopropyltriethoxysilane 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 (C2H5O)3Si(CH2)3NCO with a molecular weight of 247.36 g/mol.
How should this product be stored?
Store at ambient temperature, away from moisture and incompatible materials.
What grade is available?
Available in technical grade; specific purity details can be provided upon request.
Can Molekula supply this in bulk?
Yes, Molekula can supply 3-Isocyanatopropyltriethoxysilane in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) compliant with GHS standards.
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.