Description

1,2,5-Oxadiazole-3,4-Dicarboxylic Acid, Diethyl Ester is a high-value heterocyclic building block and versatile synthetic intermediate. Its core value lies in its functionalized 1,2,5-oxadiazole (furazan) ring, which is integral to developing advanced materials and bioactive molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to innovate in their respective fields.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those containing the furazan moiety for its metabolic stability and potential biological activity.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, where the oxadiazole ring can contribute to product efficacy.
• Energetic Materials Research: Acts as a building block for the development of high-energy-density materials (HEDMs) and propellant formulations due to its nitrogen-oxygen rich structure.
• Ligand and Coordination Chemistry: The dicarboxylate ester groups can be hydrolyzed to acids, making it a useful precursor for chelating ligands in metal-organic frameworks (MOFs) and catalysts.
• Polymer and Material Science: Employed in the synthesis of specialty polymers, dyes, and functional materials that require thermally stable heterocyclic components.

Basic Information

Product Name	1,2,5-Oxadiazole-3,4-Dicarboxylic Acid, Diethyl Ester
CAS No.	65422-98-2
Molecular Formula	C8H10N2O5
Molecular Weight	214.18 g/mol
Synonyms	Diethyl 1,2,5-Oxadiazole-3,4-dicarboxylate; Diethyl Furazan-3,4-dicarboxylate; 3,4-Diethoxycarbonylfurazan; Diethyl 3,4-Furandicarboxylate, 2,5-diaza derivative; Furazan-3,4-dicarboxylic acid diethyl ester; 1,2,5-Oxadiazole-3,4-dicarboxylic acid diethyl ester; Diethyl 1,2,5-oxadiazole-3,4-dicarboxylate
EINECS	Contact for details

Quality Control

Our 1,2,5-Oxadiazole-3,4-Dicarboxylic Acid, Diethyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results are available for every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.