Description

1-Cyclopentene-1-Carboxylic Acid, 2-Methyl-5-Oxo-, Ethyl Ester is a specialized organic ester building block characterized by its cyclopentene ring and keto-ester functionality. This compound is valued for its unique molecular scaffold, which serves as a versatile intermediate in advanced synthetic chemistry. It is primarily sought after by research institutions and fine chemical manufacturers engaged in the development of pharmaceuticals, agrochemicals, and novel materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules, particularly those containing functionalized cyclopentane/cyclopentene rings.
• Agrochemical Synthesis: Used in the research and development of new active ingredients for crop protection products.
• Organic Synthesis Building Block: Serves as a versatile starting material for constructing more complex molecular architectures in academic and industrial R&D.
• Flavor & Fragrance Chemistry: Potential intermediate for creating novel aroma compounds due to its ester and ketone groups.
• Material Science Research: Investigated as a monomer or cross-linking agent in the development of specialty polymers.

Basic Information

Product Name	1-Cyclopentene-1-Carboxylic Acid, 2-Methyl-5-Oxo-, Ethyl Ester
CAS No.	70157-02-7
Molecular Formula	C10H14O3
Molecular Weight	182.22 g/mol
Synonyms	Ethyl 2-Methyl-5-oxo-1-cyclopentene-1-carboxylate; 2-Methyl-5-oxo-1-cyclopentene-1-carboxylic Acid Ethyl Ester; Ethyl 2-Methyl-5-oxocyclopent-1-ene-1-carboxylate; 1-Cyclopentene-1-carboxylic acid, 2-methyl-5-oxo-, ethyl ester; 70157-02-7; 2-Methyl-5-oxo-1-cyclopenten-1-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our production of 1-Cyclopentene-1-Carboxylic Acid, 2-Methyl-5-Oxo-, Ethyl Ester adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and bases.

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.