Description

4-Nitroisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, distinguished by the presence of a nitro functional group on the benzene ring. This compound serves as a versatile and critical chemical intermediate in advanced organic synthesis, valued for its ability to introduce both carboxylic acid and nitro substituents into target molecules. It is primarily sought after by pharmaceutical, agrochemical, and specialty polymer manufacturers for the development of active ingredients, dyes, and high-performance materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, pesticides, and plant growth regulators.
• Polymer & Resin Modifier: Imparts specific properties like thermal stability or reactivity into polyesters, polyamides, and epoxy resins.
• Dye & Pigment Manufacturing: Serves as a precursor for azo dyes and other colorants.
• Liquid Crystal & OLED Material Research: Used in the development of advanced electronic display components.
• Metal-Organic Framework (MOF) Synthesis: Acts as an organic linker in the construction of porous coordination polymers.
• Corrosion Inhibitor Formulation: A component in specialty chemical blends for industrial protection.
• Academic & Industrial R&D: A reagent for methodological development and novel compound discovery in organic chemistry.

Basic Information

Product Name	4-Nitroisophthalic Acid
CAS No.	4315-09-7
Molecular Formula	C8H5NO6
Molecular Weight	211.13 g/mol
Synonyms	4-Nitrobenzene-1,3-dicarboxylic Acid; 5-Nitroisophthalic Acid; Isophthalic Acid, 4-Nitro-; 1,3-Benzenedicarboxylic acid, 5-nitro-; 4-Nitro-1,3-benzenedicarboxylic Acid; 5-Nitrobenzene-1,3-dicarboxylic Acid; 4-Nitro-m-phthalic Acid
EINECS	224-335-7

Quality Control

Our 4-Nitroisophthalic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, IR, and titration methods, to ensure it meets precise purity and impurity profile specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your project requirements.

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, sparks, and open flame. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	265 - 270 °C
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.