4-Ethynylbiphenyl
4-Ethynylbiphenyl (CAS: 29079-00-3), with the molecular formula C₁₄H₁₀ and a molecular weight of 178.23 g/mol, is a valuable organic building block. This terminal alkyne features a biphenyl structure, making it a versatile intermediate in organic synthesis. It is commonly employed in the construction of more complex molecules, particularly in research and development settings within the chemical and pharmaceutical industries for creating novel compounds and materials.

Organic Synthesis Intermediate
4-Ethynylbiphenyl serves as a key building block in the synthesis of advanced organic molecules. Its terminal alkyne functionality allows for participation in various coupling reactions, such as Sonogashira coupling, enabling the formation of carbon-carbon bonds.
Materials Science Research
The biphenyl moiety combined with the reactive alkyne group makes this compound useful in developing new organic materials. It can be incorporated into polymers, liquid crystals, or organic electronic components through further chemical modification and polymerization.
Pharmaceutical and Agrochemical Development
As a versatile synthetic intermediate, 4-Ethynylbiphenyl can be utilized in the discovery and development of novel pharmaceutical agents and agrochemicals. Its structure provides a scaffold for exploring new chemical entities with potential biological activity.
| Molecular weight | 178.23 |
|---|---|
| Linear formula | C6H5C6H4C≡CH |
| Assay | 97% |
| Melting point | 88-91 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 4-Ethynylbiphenyl used for?
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4-Ethynylbiphenyl is primarily used as a versatile building block in organic synthesis, particularly for creating complex molecules in materials science, and in the development of pharmaceuticals and agrochemicals.
What are the CAS number and molecular formula of 4-Ethynylbiphenyl?
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The CAS number for 4-Ethynylbiphenyl is 29079-00-3, and its molecular formula is C₁₄H₁₀.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Ethynylbiphenyl with an assay of 97%. This product is typically considered for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
How should 4-Ethynylbiphenyl be handled safely?
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When handling 4-Ethynylbiphenyl, it is essential to use appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if respiratory protection is needed. Note that this compound is classified with WGK Germany 3, indicating a higher hazard level.
Is 4-Ethynylbiphenyl a controlled substance?
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The provided data does not indicate that 4-Ethynylbiphenyl is a controlled substance.
How is 4-Ethynylbiphenyl packed, shipped, and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures that 4-Ethynylbiphenyl is packed and shipped in compliance with all relevant regulations for chemical transport. We handle export logistics for customers worldwide.
How can I request a sample or quote for 4-Ethynylbiphenyl?
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To request a sample or a quotation for 4-Ethynylbiphenyl, please contact our sales team through the website or by phone. We will promptly provide the information you need.
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