Description

Cyclopent-2-Enecarboxylic Acid Ethyl Ester is a versatile organic ester building block characterized by its reactive cyclopentene ring and ester functionality. This compound is valued for its role as a key intermediate in the synthesis of complex molecules, particularly in pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists working on novel active ingredients, fine chemicals, and specialty materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), especially those containing fused or functionalized cyclopentane/cyclopentene rings.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its reactive structure.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, flavors, and fragrances requiring specific cyclic structures.
• Organic Synthesis & Research: Employed in academic and industrial laboratories for Diels-Alder reactions, hydrogenation studies, and other cycloaddition or functionalization chemistry.
• Material Science: Investigated as a monomer or cross-linking agent in the development of specialized polymers and resins.

Basic Information

Product Name	Cyclopent-2-Enecarboxylic Acid Ethyl Ester
CAS No.	5809-02-9
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	Ethyl 2-Cyclopentene-1-carboxylate; Ethyl Cyclopent-2-ene-1-carboxylate; 2-Cyclopentene-1-carboxylic Acid Ethyl Ester; 1-Carbethoxy-2-cyclopentene; Ethyl Cyclopent-2-enecarboxylate; NSC 5235
EINECS	227-366-4

Quality Control

Our Cyclopent-2-Enecarboxylic Acid Ethyl Ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopy (NMR, IR), to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee it meets your research and production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong bases and incompatible materials. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.4580 - 1.4620
Density (g/mL, 20°C)	1.010 - 1.030

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