(Trimethylsiloxy)ethylene
(Trimethylsiloxy)ethylene (CAS: 6213-94-1), with the molecular formula (CH3)3SiOCH=CH2 and a molecular weight of 116.23 g/mol, is a versatile organosilicon compound. It functions as a valuable building block in organic synthesis. Its enol ether structure allows for various chemical transformations, making it useful in the preparation of more complex molecules. This compound is typically supplied for research and chemical synthesis purposes.
- IUPAC
- TMSO-ethene
- Synonyms
- TMSO-ethene

Organic Synthesis Intermediate
(Trimethylsiloxy)ethylene serves as a key intermediate in the synthesis of diverse organic compounds. Its reactive enol ether moiety readily participates in addition reactions and other transformations essential for creating complex molecular architectures.
Building Block for Specialty Chemicals
This compound is employed as a fundamental building block in the development of specialty chemicals. Its unique siloxy and vinyl groups enable the introduction of specific functionalities into target molecules.
Research and Development
Utilised in academic and industrial R&D settings, (Trimethylsiloxy)ethylene aids in exploring novel synthetic routes and developing new materials. Its availability facilitates experimentation in areas such as polymer chemistry and organometallic studies.
| Molecular weight | 116.23 |
|---|---|
| Linear formula | (CH3)3SiOCH=CH2 |
| Assay | ≥96% (GC) |
| Boiling point | 74 °C(lit.) |
| Density | 0.779 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.389(lit.) |
| Storage temperature | 2-8°C |


Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -19 °C / -2.2 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-36 |
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 (Trimethylsiloxy)ethylene used for?
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(Trimethylsiloxy)ethylene is primarily used as an intermediate and building block in organic synthesis and chemical research and development.
What is the CAS number and formula for (Trimethylsiloxy)ethylene?
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The CAS number is 6213-94-1 and the linear formula is (CH3)3SiOCH=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (Trimethylsiloxy)ethylene with an assay of ≥96% (GC). This is a technical grade; we do not represent it as USP, BP, EP, or any pharmacopoeia grade.
How should (Trimethylsiloxy)ethylene be handled safely?
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Due to its flammability (Flash Point -19 °C) and irritant properties (H225, H315, H319, H335), handle with appropriate personal protective equipment including eyeshields, gloves, and suitable respiratory protection in a well-ventilated area. Keep away from heat and open flames.
Is (Trimethylsiloxy)ethylene a controlled substance?
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The provided data does not indicate that (Trimethylsiloxy)ethylene is a controlled substance.
How is (Trimethylsiloxy)ethylene packed, shipped, and exported?
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Products are typically packaged according to safety regulations and shipping carrier requirements for hazardous materials. Tech Serve Solutions, as a global supplier, handles the complexities of exporting fine chemicals worldwide.
How can I request a quote or sample?
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Please contact our sales team or use the online enquiry form on the Tech Serve Solutions website to request a quote or a sample of (Trimethylsiloxy)ethylene.
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