Description

Diethyl 1,2-Cyclopropanedicarboxylate is a high-purity, versatile diester building block essential for advanced organic synthesis. Its strained cyclopropane ring and reactive ester groups make it a critical intermediate for constructing complex molecular architectures with high precision. This compound is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of cyclopropane-containing drug candidates, including protease inhibitors and other biologically active molecules.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides where the cyclopropane moiety enhances biological activity and stability.
• Organic Synthesis Building Block: Serves as a versatile starting material for ring-opening reactions, cycloadditions, and the preparation of complex carboxylic acid derivatives.
• Material Science Research: Employed in the development of novel polymers and functional materials with tailored properties.
• Flavor & Fragrance Industry: Acts as an intermediate for synthesizing specific ester-based aroma compounds.
• Academic & R&D Laboratories: A valuable reagent for methodological development and exploring new synthetic pathways in organic chemistry.

Basic Information

Product Name	Diethyl 1,2-Cyclopropanedicarboxylate
CAS No.	20561-09-5
Molecular Formula	C9H14O4
Molecular Weight	186.21 g/mol
Synonyms	1,2-Cyclopropanedicarboxylic Acid Diethyl Ester; Diethyl Cyclopropane-1,2-dicarboxylate; Ethyl 1,2-Cyclopropanedicarboxylate; Cyclopropane-1,2-dicarboxylic Acid Diethyl Ester; Diethyl Cyclopropanedicarboxylate; 1,2-Diethoxycarbonylcyclopropane; Ethyl Cyclopropane-1,2-dicarboxylate
EINECS	Contact for details

Quality Control

Our Diethyl 1,2-Cyclopropanedicarboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopic methods, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment ensures the material meets the high standards required for research and industrial synthesis.

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%
Refractive Index (n20/D)	1.435 - 1.445
Density (g/mL, 20°C)	1.090 - 1.110

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