Description

2-Cyclopentene-1-Carboxylic Acid Methyl Ester is a versatile, high-purity chemical intermediate with a strained cyclic structure, offering significant synthetic utility. Its core value lies in enabling complex molecular construction, particularly in the synthesis of biologically active compounds and advanced materials. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to build novel molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug candidates, particularly those containing cyclopentane or cyclopentene ring systems.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its reactive olefin and ester functionalities.
• Organic Synthesis Reagent: Serves as a versatile dienophile in Diels-Alder reactions and a precursor for further functionalization (e.g., hydrolysis, reduction, cross-coupling).
• Fragrance & Flavor Chemistry: Acts as a potential intermediate for creating specific ester-based aroma compounds.
• Material Science Research: Investigated as a monomer or cross-linking agent for specialized polymers and resins.
• Academic & R&D Laboratories: A valuable reagent for methodological studies and the development of new synthetic pathways in organic chemistry.

Basic Information

Product Name	2-Cyclopentene-1-Carboxylic Acid Methyl Ester
CAS No.	2258-56-2
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	Methyl 2-Cyclopentene-1-carboxylate; Methyl Cyclopent-2-ene-1-carboxylate; 2-Cyclopentene-1-carboxylic Acid, Methyl Ester; 1-Cyclopentene-1-carboxylic Acid Methyl Ester; Cyclopent-2-ene-1-carboxylic Acid Methyl Ester; Methyl 1-Cyclopentene-1-carboxylate; Methyl Cyclopent-2-ene-1-carboxylate
EINECS	218-851-8

Quality Control

Our 2-Cyclopentene-1-Carboxylic Acid Methyl Ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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. 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 at 20°C)	1.040 - 1.060

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