Furan-3-ylethynyltrimethylsilane
Furan-3-ylethynyltrimethylsilane (CAS 465521-19-1, C9H12OSi) is a heterocyclic organic compound with a molecular weight of 164.28 g/mol. This compound serves as a valuable building block in organic synthesis, particularly for introducing furan moieties into more complex molecular structures. Its trimethylsilyl-protected ethynyl group offers controlled reactivity for various coupling reactions and functional group transformations.

Organic Synthesis Intermediate
Used as a versatile intermediate in the synthesis of complex organic molecules. The furan ring and the protected alkyne allow for diverse downstream functionalization in medicinal chemistry and materials science.
Heterocyclic Chemistry
A key building block for constructing novel heterocyclic compounds. Its structure facilitates the development of new pharmacophores and ligands.
Materials Science Research
Applicable in the development of new organic materials, leveraging the electronic properties of the furan ring and the potential for polymerization via the alkyne.
| Molecular weight | 164.28 |
|---|---|
| Empirical formula | C9H12OSi |
| Assay | 97% |
| Boiling point | 184-186 °C(lit.) |
| Density | 0.906 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4910(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Flash point | 65 °C / 149 °F |
|---|---|
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 Furan-3-ylethynyltrimethylsilane used for?
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Furan-3-ylethynyltrimethylsilane is primarily used as a building block and intermediate in organic synthesis, particularly in heterocyclic chemistry and materials science research for constructing complex organic molecules.
What are the CAS number and formula for Furan-3-ylethynyltrimethylsilane?
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The CAS number for Furan-3-ylethynyltrimethylsilane is 465521-19-1, and its empirical formula is C9H12OSi.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Furan-3-ylethynyltrimethylsilane with a minimum purity of 97%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling precautions for Furan-3-ylethynyltrimethylsilane?
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This compound is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). It may also cause long-lasting harmful effects to aquatic life (H413). Always handle with appropriate personal protective equipment in a well-ventilated area.
How is Furan-3-ylethynyltrimethylsilane packed and shipped?
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Furan-3-ylethynyltrimethylsilane is typically packed and shipped according to international transport regulations for hazardous materials (RID/ADR). Further details regarding specific packaging or shipping options can be provided upon request.
How can I request a quote or sample?
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To request a quote or a sample of Furan-3-ylethynyltrimethylsilane, please use the 'Enquire' button on our product page or contact our sales team directly.
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