Molekula
Triethylsilane
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Triethylsilane is a silane reagent used primarily as a reducing agent in organic synthesis, particularly in hydrosilylation and deoxygenation reactions. It is a colorless liquid with a pungent odor, highly flammable, and requires careful handling. CAS: 617-86-7, Molecular formula: SiH(CH₂CH₃)₃, Molecular weight: 116.28 g/mol, stored at ambient temperature.
Molekula supplies Triethylsilane at ≥98% purity in 25 g and 100 g packs, from £33.60 inc. VAT. It is made or sourced to order. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
On backorder — expected to ship by 5 December 2026
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 — £28.00 per pack ex VAT · £33.60 inc. VAT
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100 g — £56.00 per pack ex VAT · £67.20 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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to light yellow liquid |
| Purity | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | -6 °C |
| Transport Class | 3 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 42.9 mmHg |
Source: PubChem CID 12052 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 11916965 |
| CAS Number | 617-86-7 |
| IUPAC Name | triethylsilane |
| EC Number | 210-535-3 |
| Molecular Formula | SiH(CH2CH3)3 |
| Molecular Weight | 116.28 |
| Exact Mass | 116.1021 |
| SMILES | CC[SiH](CC)CC |
| InChIKey | AQRLNPVMDITEJU-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H16Si/c1-4-7(5-2)6-3/h7H,4-6H2,1-3H3 |
| PubChem CID | 12052 |
| UN Number | UN1993 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29319090 |
| Tariff Code | 2931900090 |
Safety & GHS
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Flammable
GHS02
-
Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H225 Highly flammable liquid and vapour
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Et3SIH
- HSiEt3
- LS 1320; NSC 93579; Triethylhydrosilane; Triethylsilicon Hydride;
- Silane, triethyl-
- Triethylhydrosilane
- Triethylsilan
- Triethylsilicon hydride
- triethylsilylhydride
- triethysilane
- trietylsilane
Frequently asked questions
What is triethylsilane used for?
Triethylsilane is primarily used as a reducing agent in organic synthesis, particularly in hydrosilylation reactions and as a silicon source in the synthesis of organosilicon compounds.
What is the chemical formula and molecular weight of triethylsilane?
The formula is SiH(CH2CH3)3 and the molecular weight is 116.28 g/mol.
How should triethylsilane be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials, in a tightly sealed container.
What grade of triethylsilane does Molekula supply?
Molekula supplies triethylsilane with a purity of ≥98%; custom grades are available upon request.
Can Molekula supply triethylsilane in bulk?
Yes, Molekula can supply triethylsilane in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a triethylsilane order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Where can I buy Triethylsilane?
Directly from Molekula, which lists Triethylsilane in 25 g and 100 g packs from £33.60 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Triethylsilane dangerous goods for shipping?
Yes. Triethylsilane ships as dangerous goods: UN1993, class 3, packing group II.
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.