Description

Pyridine-3,4-Dicarboxylic Anhydride is a versatile heterocyclic building block and key organic intermediate. This compound is valued for its rigid, planar structure and dual reactive anhydride functionality, which facilitates the synthesis of complex molecules. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for developing active ingredients, ligands, and functional polymers.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) agents and enzyme inhibitors.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Ligand & Chelator Production: Serves as a starting material for creating bipyridine-like ligands used in catalysis and metal-organic frameworks (MOFs).
• Polymer & Material Science: Employed in the production of polyimides and other high-performance polymers with enhanced thermal stability.
• Organic Synthesis Building Block: Utilized in academic and industrial R&D for constructing complex heterocyclic systems and functionalized pyridine derivatives.
• Analytical Reagent: Can be used in the preparation of derivatives for chromatographic analysis or as a standard in specific methodologies.

Basic Information

Product Name	Pyridine-3,4-Dicarboxylic Anhydride
CAS No.	4664-08-8
Molecular Formula	C7H3NO3
Molecular Weight	149.10 g/mol
Synonyms	3,4-Pyridinedicarboxylic Anhydride; 1H-Pyrrolo[3,4-c]pyridine-1,3,5(2H)-trione; 3,4-Pyridinedicarboxylic Acid Anhydride; Dinicotinic Anhydride; 4-Carboxynicotinic Anhydride; PDCA Anhydride; Pyridine-3,4-dicarboxylic acid cyclic anhydride
EINECS	225-124-5

Quality Control

Our Pyridine-3,4-Dicarboxylic Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles. Specifications are aligned with industry standards for fine chemical intermediates, supporting our commitment to reliable supply and product traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture.

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%
Heavy Metals (as Pb)	≤ 20 ppm

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