Description

Cyclopentanecarboxylic Acid, 3,3-Diethyl-2-Oxo-, Methyl Ester (9Ci) is a specialized organic ester compound with a unique cyclopentane backbone functionalized with diethyl and oxo groups. This structure makes it a valuable high-purity intermediate for advanced chemical synthesis, particularly in the development of complex molecules. It is primarily sought by pharmaceutical and agrochemical R&D teams for use in constructing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those requiring complex, functionalized cyclopentane rings.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its specific structure can contribute to unique biological activity.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, including flavors, fragrances, and advanced materials.
• Organic Synthesis Research: A valuable reagent in academic and industrial laboratories for methodological development and the construction of complex molecular architectures.
• Ligand and Catalyst Development: Potential use in creating specialized ligands for asymmetric catalysis or metal-organic frameworks.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 3,3-Diethyl-2-Oxo-, Methyl Ester (9Ci)
CAS No.	533885-12-0
Molecular Formula	C11H18O3
Molecular Weight	198.26 g/mol
Synonyms	Methyl 3,3-diethyl-2-oxocyclopentanecarboxylate; 3,3-Diethyl-2-oxocyclopentanecarboxylic acid methyl ester; 2-Oxo-3,3-diethylcyclopentanecarboxylic Acid Methyl Ester; Cyclopentanecarboxylic acid, 3,3-diethyl-2-oxo-, methyl ester; Methyl 3,3-diethyl-2-oxo-1-cyclopentanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 3,3-Diethyl-2-Oxo-, Methyl Ester (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing including HPLC, GC, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee compliance with your research and production requirements.

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 strong bases and incompatible materials. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (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.