Description

β-Butyl-2-Oxocyclopentanepropanoic Acid Methyl Ester is a specialized organic ester with a complex cyclic ketone structure, serving as a valuable intermediate in advanced organic synthesis. Its molecular architecture makes it a critical building block for constructing more complex molecules, particularly in the pharmaceutical and fine chemical sectors. This compound is essential for research chemists and process development teams working on novel active pharmaceutical ingredients (APIs), agrochemicals, and high-performance materials.

Application

• Pharmaceutical Intermediate: A key synthon in the multi-step synthesis of complex drug candidates, particularly those containing cyclopentanone or ester functional groups.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, where its structure can be incorporated into active molecules.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other specialty chemicals requiring specific stereochemistry.
• Academic & Industrial Research: A valuable reagent for methodological studies in organic chemistry, including ring-forming reactions and ester transformations.
• Material Science: Potential intermediate in the synthesis of monomers for specialized polymers or liquid crystals.

Basic Information

Product Name	β-Butyl-2-Oxocyclopentanepropanoic Acid Methyl Ester
CAS No.	72429-04-0
Molecular Formula	C13H22O3
Molecular Weight	226.31 g/mol
Synonyms	Methyl 3-(2-oxocyclopentyl)hexanoate; 2-Oxocyclopentanepropanoic acid, β-butyl-, methyl ester; Methyl β-butyl-2-oxocyclopentanepropanoate; 3-(2-Oxocyclopentyl)hexanoic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of β-Butyl-2-Oxocyclopentanepropanoic Acid Methyl Ester adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment, supporting your quality management systems and regulatory compliance needs.

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 strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed when not in use to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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