Description

5-Cyanoisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, distinguished by the presence of a cyano functional group on the benzene ring. This unique bifunctional structure makes it a valuable and versatile chemical intermediate for synthesizing advanced polymers, pharmaceuticals, and specialty materials. It is primarily sought by R&D laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and polymer chemistry sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring rigid, functionalized aromatic cores.
• Polymer & Resin Synthesis: Serves as a monomer for producing high-performance polyamides, polyesters, and polyimides with enhanced thermal stability and mechanical properties.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators.
• Ligand & Chelating Agent Precursor: The carboxylic acid and cyano groups allow for the creation of complexing agents used in catalysis and metal ion sequestration.
• Organic Synthesis & Research: A versatile reagent in academic and industrial R&D for constructing heterocycles and other complex organic molecules.
• Material Science: Employed in the development of metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and other advanced porous materials.

Basic Information

Product Name	5-Cyanoisophthalic Acid
CAS No.	23341-13-1
Molecular Formula	C9H5NO4
Molecular Weight	191.14 g/mol
Synonyms	5-Cyanobenzene-1,3-dicarboxylic Acid; Isophthalic Acid, 5-cyano-; 1,3-Benzenedicarboxylic acid, 5-cyano-; 5-CN-IPA
EINECS	Contact for details

Quality Control

Our 5-Cyanoisophthalic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the highest standards of purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and available upon request to support your quality assurance protocols.

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 strong oxidizers, strong bases, and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C (dec.)
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.