Cyclopentanecarbonyl chloride
Cyclopentanecarbonyl chloride (CAS 4524-93-0) is a chemical compound with the linear formula C5H9COCl and a molecular weight of 132.59 g/mol. This acid halide functions as a versatile organic building block in chemical synthesis. It is primarily utilised in various research and development applications where its reactive acyl chloride group can be employed to introduce the cyclopentanecarbonyl moiety into other molecules.

Organic Synthesis Reagent
Serves as a key intermediate in organic synthesis. Its reactive nature allows for the formation of esters, amides, and other derivatives through acylation reactions.
Pharmaceutical Intermediate
Utilised in the synthesis pathways of complex organic molecules, potentially contributing to the development of new pharmaceutical compounds.
Research and Development
Employed in laboratory settings for exploring novel chemical reactions and developing new synthetic methodologies.
| Molecular weight | 132.59 |
|---|---|
| Linear formula | C5H9COCl |
| Assay | 98% |
| Boiling point | 161-162 °C(lit.) |
| Density | 1.091 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4622(lit.) |


Hazard statements
- H226Flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 60 °C / 140 °F |
| Transport (UN / ADR) | UN 2920 3(8) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 Cyclopentanecarbonyl chloride used for?
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Cyclopentanecarbonyl chloride is primarily used as a reagent in organic synthesis, acting as an intermediate for introducing the cyclopentanecarbonyl group into various molecules. It finds applications in research and development, including the synthesis of potential pharmaceutical compounds.
What is the CAS number and formula for Cyclopentanecarbonyl chloride?
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The CAS number for Cyclopentanecarbonyl chloride is 4524-93-0, and its linear formula is C5H9COCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyclopentanecarbonyl chloride with a minimum purity of 98%. We do not represent this product as USP, BP, or EP grade.
How should Cyclopentanecarbonyl chloride be handled?
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Cyclopentanecarbonyl chloride is classified as corrosive and flammable. It requires careful handling using appropriate personal protective equipment, including gloves, goggles, and face shields, in a well-ventilated area. Refer to the Safety Data Sheet for detailed handling procedures.
Is Cyclopentanecarbonyl chloride available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Cyclopentanecarbonyl chloride, adhering to all relevant shipping regulations.
How can I request a quote or sample?
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To request a quote or a sample of Cyclopentanecarbonyl chloride, please contact our sales department through the provided channels on our website.
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