Cyclopentylacetylene
Cyclopentylacetylene (CAS 930-51-8, C7H10) is a terminal alkyne with a molecular weight of 94.15 g/mol. This flammable liquid serves as a versatile building block in organic synthesis. Its primary applications lie in the construction of more complex organic molecules within research and development settings, particularly in the pharmaceutical and fine chemical industries. Tech Serve Solutions supplies this compound for laboratory and industrial chemical applications.

Organic Synthesis Intermediate
Cyclopentylacetylene functions as a key intermediate in the synthesis of diverse organic compounds. Its terminal alkyne moiety allows for a variety of chemical transformations, including click chemistry and Sonogashira couplings.
Pharmaceutical Research
This compound can be employed in the development of novel pharmaceutical agents. It is used as a building block for creating complex molecular scaffolds relevant to drug discovery and medicinal chemistry.
Material Science
The unique structural features of cyclopentylacetylene may lend themselves to the creation of specialised polymers or advanced materials. Further research into its polymerisation characteristics is ongoing.
| Molecular weight | 94.15 |
|---|---|
| Empirical formula | C7H10 |
| Assay | 90% |
| Density | 0.812 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.432(lit.) |


Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- 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 | 1 °C / 33.8 °F |
| Transport (UN / ADR) | UN 3295BE 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-22 |
| Safety statements (S) | 7/9-16 |
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 Cyclopentylacetylene used for?
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Cyclopentylacetylene is used as a building block and intermediate in organic synthesis, particularly in pharmaceutical research and the development of fine chemicals.
What is the CAS number and formula for Cyclopentylacetylene?
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The CAS number for Cyclopentylacetylene is 930-51-8, and its empirical formula is C7H10.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyclopentylacetylene with a minimum assay of 90%. This product is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the main hazards associated with Cyclopentylacetylene?
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Cyclopentylacetylene is a highly flammable liquid (Flash Point 1°C) and is harmful if swallowed. It can cause serious eye irritation. Appropriate personal protective equipment, including eyeshields and chemical-resistant gloves, must be worn. Handle only in a well-ventilated area.
How is Cyclopentylacetylene packed and shipped?
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This chemical is packed and shipped according to international regulations for hazardous materials, identified under UN 3295, Packing Group II, Class 3.
How can I request a quote or sample?
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To request a quote or sample of Cyclopentylacetylene, please contact our sales team via the website or by phone.
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