Description

Diethyl 1,1-Cyclopentanedicarboxylate is a high-purity diester compound valued as a versatile chemical intermediate and building block in advanced organic synthesis. Its unique cyclopentane-based structure makes it a critical precursor for the development of complex molecules, including active pharmaceutical ingredients (APIs) and specialty fine chemicals. This product is essential for research and development laboratories, pharmaceutical manufacturers, and fine chemical producers seeking reliable, high-quality intermediates for complex synthetic routes.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly those requiring functionalized cyclopentane rings.
• Fine Chemical Synthesis: Used in the production of specialty chemicals, including fragrances, flavors, and advanced materials where precise molecular architecture is required.
• Agrochemical Research: Serves as a precursor in the development of novel pesticides and herbicides with specific biological activity profiles.
• Academic & Industrial R&D: A valuable reagent for method development and exploratory chemistry in both academic institutions and corporate research centers.
• Polymer Chemistry: Can be utilized as a monomer or co-monomer in the synthesis of specialized polyesters and other polymeric materials.
• Ligand and Catalyst Development: Employed in the creation of novel chiral ligands and organocatalysts for asymmetric synthesis.

Basic Information

Product Name	Diethyl 1,1-Cyclopentanedicarboxylate
CAS No.	4167-77-5
Molecular Formula	C11H18O4
Molecular Weight	214.26 g/mol
Synonyms	1,1-Cyclopentanedicarboxylic Acid Diethyl Ester; Diethyl Cyclopentane-1,1-dicarboxylate; Diethyl 1,1-Cyclopentanedicarboxylate; Ethyl 1,1-Cyclopentanedicarboxylate; Cyclopentane-1,1-dicarboxylic Acid Diethyl Ester; 1,1-Bis(ethoxycarbonyl)cyclopentane; Diethyl Cyclopentan-1,1-dicarboxylate
EINECS	224-041-5

Quality Control

Our Diethyl 1,1-Cyclopentanedicarboxylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopic methods, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment supports applications requiring reliable and traceable raw materials, from research to commercial-scale production.

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 heat sources and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
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.