Trimethyl(vinyl)silane
Trimethyl(vinyl)silane (CAS 754-05-2), also known as (trimethylsilyl)ethylene, is an organosilicon compound with the molecular formula (CH3)3SiCHCH2 and a molecular weight of 100.23 g/mol. This flammable liquid is utilised in chemical synthesis, particularly as a versatile reagent in organometallic chemistry and for introducing the vinylsilyl group into organic molecules. It serves as a building block in the production of various complex organic compounds.
- IUPAC
- (Trimethylsilyl)ethylene,Ethenyltrimethylsilane
- Synonyms
- (Trimethylsilyl)ethyleneEthenyltrimethylsilane

Organic Synthesis Reagent
Trimethyl(vinyl)silane acts as a valuable reagent in organic synthesis, enabling the introduction of vinylsilane functionalities into target molecules. Its reactivity allows for participation in various coupling reactions and other transformations.
Organometallic Chemistry
As an organometallic reagent, it finds application in the construction of more complex organosilicon compounds. It can be used in reactions involving transition metal catalysts, facilitating the formation of carbon-carbon bonds.
Polymer Chemistry
The vinyl group present in trimethyl(vinyl)silane allows for its potential use as a monomer or co-monomer in the synthesis of specialised polymers. This can impart unique properties derived from the silane moiety to the resulting polymeric materials.
| Molecular weight | 100.23 |
|---|---|
| Linear formula | (CH3)3SiCHCH2 |
| Assay | ≥97.0% (GC) |
| Grade | purum |
| Boiling point | 55 °C(lit.) |
| Density | 0.684 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.391(lit.)n20/D 1.391 |
| Vapour pressure | 4.44 psi (20 °C) |



Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H351Suspected of causing cancer
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P281Use personal protective equipment as required
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -24 °C / -11.2 °F |
| Transport (UN / ADR) | UN 1993BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-22-36/37/38-40 |
| Safety statements (S) | 16-26-36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Trimethyl(vinyl)silane primarily used for?
+
Trimethyl(vinyl)silane is primarily used as a reagent in organic synthesis and organometallic chemistry, serving as a building block for introducing vinylsilyl groups and constructing complex organosilicon compounds.
What is the CAS number and chemical formula for Trimethyl(vinyl)silane?
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The CAS number for Trimethyl(vinyl)silane is 754-05-2, and its linear formula is (CH3)3SiCHCH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Trimethyl(vinyl)silane with a purity of ≥97.0% (GC), with a grade specified as 'purum'. We do not represent this product as USP, BP, or EP grade.
What are the main safety concerns when handling Trimethyl(vinyl)silane?
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Trimethyl(vinyl)silane is a highly flammable liquid and vapour (H225). It is harmful if swallowed (H302) and causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). It is also suspected of causing cancer (H351). Strict adherence to safety protocols, including appropriate personal protective equipment and handling in well-ventilated areas, is essential.
How is Trimethyl(vinyl)silane typically packed and shipped?
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Trimethyl(vinyl)silane is packed and shipped according to international regulations for hazardous materials, including UN 1993 classification. We are experienced global exporters.
How can I request a sample or obtain a quote for Trimethyl(vinyl)silane?
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To request a sample or obtain a quote for Trimethyl(vinyl)silane, please contact our sales department through the website or by phone, referencing the product name and CAS number 754-05-2.
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