(Triethylsilyl)acetylene
(Triethylsilyl)acetylene (CAS 1777-03-3) is a versatile terminal alkyne with the linear formula (C2H5)3SiC≡CH and a molecular weight of 140.30 g/mol. This organic building block is crucial in various chemical synthesis applications. Its unique structure allows for selective reactions, making it a valuable reagent for constructing more complex molecules in organic chemistry and materials science. It is supplied by TSS with an assay of 97%.
- IUPAC
- Ethynyltriethylsilane
- Synonyms
- Ethynyltriethylsilane
Organic Synthesis Reagent
(Triethylsilyl)acetylene serves as a key building block in organic synthesis. It can be used in Sonogashira couplings and other alkyne functionalisation reactions to introduce the triethylsilylacetylene moiety into target molecules.
Protecting Group Strategy
The triethylsilyl group acts as a protecting group for the terminal alkyne. This allows for selective reactions at other sites in a molecule before deprotection to reveal the terminal alkyne.
Materials Science Research
This compound finds application in the development of novel materials, particularly polymers and functionalised surfaces, where the alkyne group can be further modified or polymerised.
| Molecular weight | 140.30 |
|---|---|
| Linear formula | (C2H5)3SiC≡CH |
| Assay | 97% |
| Density | 0.783 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.433(lit.) |
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 | 17 °C / 62.6 °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) | 16-26-36/37/39 |
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 (Triethylsilyl)acetylene used for?
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(Triethylsilyl)acetylene is primarily used as a reagent and building block in organic synthesis, for protecting group strategies, and in materials science research.
What is the CAS number and formula for (Triethylsilyl)acetylene?
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The CAS number is 1777-03-3 and the linear formula is (C2H5)3SiC≡CH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (Triethylsilyl)acetylene with an assay of 97%. We do not represent this product as USP, BP, EP or other pharmacopoeia grades.
How should (Triethylsilyl)acetylene be handled safely?
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(Triethylsilyl)acetylene is a flammable liquid and vapour (H225) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area, away from ignition sources.
How is (Triethylsilyl)acetylene packed and shipped?
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As a specialist global supplier and exporter, TSS ensures that (Triethylsilyl)acetylene is packed and shipped in accordance with all relevant safety and transportation regulations, including its classification as UN 1993 BF 3 / PGII.
How can I request a sample or quote for (Triethylsilyl)acetylene?
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Please contact our sales team directly or use the online enquiry form on our website to request a sample or a quote for (Triethylsilyl)acetylene.
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