Description

2-Nitro-Isophthalic Acid (CAS NO 21161-11-5) is a versatile nitro-substituted aromatic dicarboxylic acid derivative that serves as a critical synthetic intermediate. Its value lies in the strategic positioning of the nitro and carboxylic acid functional groups, enabling precise chemical modifications for advanced material synthesis. This compound is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries who require high-purity building blocks for complex molecule construction.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a nitro-aromatic scaffold.
• Agrochemical Synthesis: Used in the development of herbicides, fungicides, and insecticides where the nitro group acts as a versatile handle for further functionalization.
• Polymer & Dye Manufacturing: Serves as a monomer or modifying agent in the production of high-performance polyamides, polyesters, and complex organic dyes and pigments.
• Ligand & Chelating Agent Precursor: The carboxylic acid groups make it a valuable starting material for synthesizing specialized ligands used in catalysis and metal ion sequestration.
• Organic Synthesis & Research: A fundamental building block in academic and industrial R&D for exploring novel heterocyclic compounds and other fine chemicals.
• Corrosion Inhibitor Formulation: Used in the development of specialty chemical formulations designed to protect metal surfaces in industrial settings.

Basic Information

Product Name	2-Nitro-Isophthalic Acid
CAS No.	21161-11-5
Molecular Formula	C8H5NO6
Molecular Weight	211.13 g/mol
Synonyms	2-Nitrobenzene-1,3-dicarboxylic Acid; Isophthalic Acid, 2-Nitro-; 3-Carboxy-2-nitrobenzoic Acid; 2-Nitro-1,3-benzenedicarboxylic Acid; 2-Nitroisophthalic Acid; 2-NIPA; 2-Nitro-m-phthalic Acid; NSC 403107
EINECS	244-247-3

Quality Control

Our 2-Nitro-Isophthalic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent batch-to-batch reliability. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in darkness.

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.