Description

2-Cyclopentene-1-Carboxylicacid,5-Methyl-,Methylester,cis-(9Ci) is a specialized, high-purity chemical intermediate with a defined stereochemistry, offering a valuable building block for complex organic synthesis. Its cis-configured cyclopentene core and ester functionality make it a critical precursor for developing advanced pharmaceuticals, agrochemicals, and performance materials. This compound is essential for research chemists and process development scientists in fine chemical and life science industries seeking to introduce specific molecular geometry and reactivity into their target molecules.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with cyclopentane or cyclopentene-based structures.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides where its specific ring system can contribute to biological activity.
• Fine Chemical Production: Acts as a versatile building block for creating complex molecules used in flavors, fragrances, and advanced material science.
• Academic & Industrial Research: Employed in methodological studies, catalysis research, and the development of new synthetic pathways in organic chemistry.
• Material Science Precursor: Potential use in the synthesis of specialized monomers for polymers with unique thermal or mechanical properties.

Basic Information

Product Name	2-Cyclopentene-1-Carboxylicacid,5-Methyl-,Methylester,cis-(9Ci)
CAS No.	68303-92-4
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	cis-5-Methyl-2-cyclopentene-1-carboxylic acid methyl ester; Methyl cis-5-methyl-2-cyclopentene-1-carboxylate; (1R,5S)-5-Methyl-2-cyclopentene-1-carboxylic acid methyl ester (relative stereochemistry); 5-Methyl-2-cyclopenten-1-yl carboxylic acid methyl ester, cis-; 2-Cyclopentene-1-carboxylic acid, 5-methyl-, methyl ester, (1α,5β)-; 68303-92-4; cis-Methyl 5-methyl-2-cyclopentenecarboxylate
EINECS	Contact for details

Quality Control

Our 2-Cyclopentene-1-Carboxylicacid,5-Methyl-,Methylester,cis-(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and stereochemical confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong bases and oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
cis-Isomer Content (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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