Description

2-Cyclopentene-1-Carboxylicacid,2-Methyl-4-Oxo-,Methylester(9Ci) CAS NO 128350-67-4 is a high-purity, specialized organic intermediate featuring a functionalized cyclopentene core. This compound is valued for its unique molecular scaffold, which serves as a critical building block in advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those requiring complex, chiral, or constrained ring systems.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its structure can contribute to specific biological activity.
• Fine Chemical Manufacturing: Serves as a versatile precursor for synthesizing specialty chemicals, flavors, and fragrances.
• Academic & Industrial Research: Employed in organic chemistry research for methodology development, catalysis studies, and the construction of complex natural product analogs.
• Material Science Precursor: Potential use in the synthesis of specialized polymers or organic electronic materials due to its reactive olefin and ester functionalities.

Basic Information

Product Name	2-Cyclopentene-1-Carboxylicacid,2-Methyl-4-Oxo-,Methylester(9Ci)
CAS No.	128350-67-4
Molecular Formula	C8H10O3
Molecular Weight	154.16 g/mol
Synonyms	Methyl 2-methyl-4-oxo-2-cyclopentene-1-carboxylate; 2-Methyl-4-oxo-2-cyclopentene-1-carboxylic acid methyl ester; 2-Cyclopentene-1-carboxylic acid, 2-methyl-4-oxo-, methyl ester; 2-Methyl-4-oxocyclopent-2-enecarboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Every batch of 2-Cyclopentene-1-Carboxylicacid,2-Methyl-4-Oxo-,Methylester(9Ci) is produced and tested under a strict quality management system. We ensure high chemical purity and consistency suitable for research and industrial synthesis. Comprehensive analytical testing, including HPLC, GC, and NMR, is performed to verify identity and purity. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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