Description

Propanedioic Acid, 2-Cyclopentylidene-, 1,3-Diethyl Ester is a specialized diester derivative of malonic acid, valued for its role as a versatile chemical intermediate and building block in advanced organic synthesis. Its unique structure, featuring a cyclopentylidene moiety, makes it particularly useful for constructing complex molecular frameworks. This compound is essential for research and development chemists and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries who require high-purity intermediates for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex drug molecules, particularly those requiring cyclopentane or spirocyclic ring systems.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where its structure contributes to specific biological activity.
• Fine Chemical Production: Acts as a building block for creating specialty chemicals, including flavors, fragrances, and advanced polymers.
• Organic Synthesis Research: Employed in academic and industrial R&D labs for developing new synthetic methodologies and constructing novel carbon skeletons.
• Material Science: Investigated as a monomer or cross-linking agent for the development of specialized polymeric materials with tailored properties.

Basic Information

Item	Details
Product Name	Propanedioic Acid, 2-Cyclopentylidene-, 1,3-Diethyl Ester
CAS No.	41589-42-8
Molecular Formula	C₁₂H₁₈O₄
Molecular Weight	226.27 g/mol
Synonyms	Diethyl 2-cyclopentylidenemalonate; 2-Cyclopentylidenemalonic Acid Diethyl Ester; Diethyl (cyclopentylidene)malonate; Cyclopentylidenemalonic Acid Diethyl Ester; Diethyl Cyclopentylidenemalonate; Propanedioic acid, 2-cyclopentylidene-, 1,3-diethyl ester; Malonic acid, cyclopentylidene-, diethyl ester
EINECS	Contact for details

Quality Control

Our Propanedioic Acid, 2-Cyclopentylidene-, 1,3-Diethyl Ester is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including GC, HPLC, and NMR to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific tests is provided with each shipment to support your quality assurance protocols.

Storage

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

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.