1-Ethynyl-4-pentylbenzene
1-Ethynyl-4-pentylbenzene (CAS 79887-10-8), with the molecular formula CH3(CH2)4C6H4C≡CH and a molecular weight of 172.27 g/mol, is a terminal alkyne. It is characterised by its phenyl ring substituted with a pentyl chain and an ethynyl group. This compound serves as a versatile building block in organic synthesis, particularly for constructing more complex molecules through reactions involving its reactive alkyne functionality. It is suitable for various research and development applications.

Organic Synthesis Intermediate
1-Ethynyl-4-pentylbenzene is utilised as a key intermediate in the synthesis of diverse organic compounds. Its terminal alkyne group readily participates in coupling reactions, cycloadditions, and other transformations to build intricate molecular architectures.
Materials Science Research
This compound can be employed in research for the development of novel materials. The presence of both an aromatic ring and an alkyne offers opportunities for polymerisation or incorporation into functional materials with specific electronic or optical properties.
Pharmaceutical Intermediate
As a valuable building block, 1-Ethynyl-4-pentylbenzene may find application in the early stages of drug discovery and development, contributing to the synthesis of potential pharmaceutical candidates.
| Molecular weight | 172.27 |
|---|---|
| Linear formula | CH3(CH2)4C6H4C≡CH |
| Assay | 97% |
| Boiling point | 172 °C(lit.) |
| Density | 0.885 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.523(lit.) |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 103 °C / 217.4 °F |
| 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 1-Ethynyl-4-pentylbenzene used for?
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1-Ethynyl-4-pentylbenzene is primarily used as a building block in organic synthesis for creating more complex molecules and in materials science research. Its reactive terminal alkyne functionality makes it useful for coupling reactions and other synthetic transformations.
What is the CAS number and formula for 1-Ethynyl-4-pentylbenzene?
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The CAS number for 1-Ethynyl-4-pentylbenzene is 79887-10-8, and its linear formula is CH3(CH2)4C6H4C≡CH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Ethynyl-4-pentylbenzene with an assay of 97%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling considerations for 1-Ethynyl-4-pentylbenzene?
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1-Ethynyl-4-pentylbenzene has a flash point of 103 °C (217.4 °F) and is classified under WGK Germany 3. Recommended personal protective equipment includes eyeshields and gloves. Handle in a well-ventilated area.
How is 1-Ethynyl-4-pentylbenzene packed and exported?
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Tech Serve Solutions expertly packs and exports fine chemicals globally, ensuring product integrity and compliance with all relevant shipping regulations for international trade.
How can I request a sample or quote for 1-Ethynyl-4-pentylbenzene?
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To request a sample or a detailed quote for 1-Ethynyl-4-pentylbenzene, please contact our sales team through the website or by calling us directly.
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