Description

Cyclopentene-1-Carboxylic Acid Ethyl Ester is a versatile, high-purity organic ester building block, essential for advanced chemical synthesis. Its unique strained-ring structure with an activated ester group makes it a valuable precursor for creating complex molecular architectures. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of prostaglandins, antiviral agents, and other bioactive molecules with cyclopentane/cyclopentene cores.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, leveraging its reactivity for ring-opening and functionalization.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, Michael additions, and other cycloadditions to construct complex carbocyclic and heterocyclic compounds.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of novel polymers with specific thermal or mechanical properties.
• Flavor & Fragrance Chemistry: Potential intermediate for synthesizing esters and lactones that contribute to complex olfactory profiles.
• Academic & R&D Laboratories: A critical reagent for methodological development and exploring new reaction pathways in organic chemistry.

Basic Information

Product Name	Cyclopentene-1-Carboxylic Acid Ethyl Ester
CAS No.	10267-94-4
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	Ethyl 1-Cyclopentene-1-carboxylate; Ethyl Cyclopent-1-ene-1-carboxylate; 1-Cyclopentene-1-carboxylic Acid Ethyl Ester; Ethyl Cyclopentenecarboxylate; NSC 5185; Cyclopent-1-ene-1-carboxylic acid ethyl ester; 1-Carbethoxycyclopentene
EINECS	233-615-4

Quality Control

Our Cyclopentene-1-Carboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopy (NMR, IR), to ensure high chemical purity and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistency and traceability for your critical R&D and production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound is moisture-sensitive; keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.4580 - 1.4620
Density (g/mL at 20°C)	1.010 - 1.030

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.