Cyclopentylacetic acid
Cyclopentylacetic acid (CAS: 1123-00-8), with the molecular formula C7H12O2 and a molecular weight of 128.17 g/mol, is a carboxylic acid derivative. This compound serves as a valuable building block in organic synthesis. It has been utilized in research for studies involving the butylation efficiency of free carboxylic acids. Tech Serve Solutions offers this chemical with an assay of 97%.
- IUPAC
- Cyclopentaneacetic acid

Organic Synthesis Intermediate
Cyclopentylacetic acid is a useful intermediate in the synthesis of more complex organic molecules. Its carboxylic acid functionality allows for various derivatizations.
Research and Development
This compound has been employed in laboratory studies, such as investigations into the butylation efficiency of free carboxylic acids, contributing to advancements in synthetic methodologies.
Building Block for Fine Chemicals
As a member of the organic building blocks category, cyclopentylacetic acid can be incorporated into the development of fine chemicals and specialty materials.
| Molecular weight | 128.17 |
|---|---|
| Linear formula | C5H9CH2CO2H |
| Assay | 97% |
| Boiling point | 133-134 °C/23 mmHg(lit.) |
| Density | 1.022 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.453(lit.) |
| Application | Cyclopentylacetic acid has been used in a study to examine the butylation efficiency of free carboxylic acids1. |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 109 °C / 228.2 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 Cyclopentylacetic acid primarily used for?
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Cyclopentylacetic acid is primarily used as a building block in organic synthesis and in research studies, including investigations into the butylation efficiency of free carboxylic acids.
What are the CAS number and molecular formula for Cyclopentylacetic acid?
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The CAS number for Cyclopentylacetic acid is 1123-00-8, and its molecular formula is C7H12O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyclopentylacetic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should Cyclopentylacetic acid be handled safely?
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Cyclopentylacetic acid is a warning-level hazardous substance (GHS07) that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields and gloves, is recommended. Consult the safety data sheet for comprehensive handling information.
Is Cyclopentylacetic acid available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Cyclopentylacetic acid.
How can I request a quote or sample?
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Please contact our sales department through the website to request a quote or sample of Cyclopentylacetic acid.
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