Triphenyl(vinyl)silane
Triphenyl(vinyl)silane (CAS: 18666-68-7) is an organosilicon compound with the linear formula (C6H5)3SiCH=CH2 and a molecular weight of 286.44 g/mol. This compound serves as a valuable intermediate and reagent in various chemical synthesis applications, particularly within organometallic and organosilicon chemistry. Its unique structure allows for specific reactions and functionalizations, making it a useful component in developing novel materials and complex molecules.
- IUPAC
- (Triphenylsilyl)ethylene,Ethenyltriphenylsilan,Vinyltriphenylsilane
- Synonyms
- Vinyltriphenylsilane(Triphenylsilyl)ethyleneEthenyltriphenylsilan

Organosilicon Synthesis
Used as a building block for the synthesis of complex organosilicon compounds. The vinyl group offers a reactive site for polymerization or functional group interconversion.
Organic Synthesis Intermediate
Acts as a versatile intermediate in organic chemistry, facilitating the introduction of the triphenylsilylvinyl moiety into various molecular structures.
Material Science Research
Explored in material science for the development of novel polymers and functional materials due to its unique silicon-containing vinyl structure.
| Molecular weight | 286.44 |
|---|---|
| Linear formula | (C6H5)3SiCH=CH2 |
| Assay | 98% |
| Melting point | 68-70 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 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 Triphenyl(vinyl)silane used for?
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Triphenyl(vinyl)silane is primarily used as an intermediate and reagent in chemical synthesis, particularly in organosilicon and organic chemistry, and is explored in material science research.
What is the CAS number and formula for Triphenyl(vinyl)silane?
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The CAS number for Triphenyl(vinyl)silane is 18666-68-7, and its linear formula is (C6H5)3SiCH=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Triphenyl(vinyl)silane with an assay of 98%. We do not represent this product as meeting USP, BP, EP, or any pharmacopoeia standards.
How should Triphenyl(vinyl)silane be handled safely?
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Handle with appropriate personal protective equipment including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray. Use only outdoors or in a well-ventilated area. Causes skin irritation, serious eye irritation, and may cause respiratory irritation.
How is Triphenyl(vinyl)silane packed and exported?
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Tech Serve Solutions packs and exports chemicals professionally to meet all necessary safety and regulatory requirements for global distribution.
How can I request a sample or quote for Triphenyl(vinyl)silane?
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To request a sample or quote, please contact our sales team through the website or by phone, providing the product name and CAS number.
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