Description

4-Nitrophthalic Acid is a key aromatic nitro dicarboxylic acid derivative, serving as a versatile and high-purity synthetic intermediate. Its value lies in its reactive nitro and carboxylic acid functional groups, enabling precise chemical transformations for advanced material synthesis. This compound is essential for research and development laboratories, pharmaceutical manufacturers, and fine chemical producers requiring a reliable building block for complex organic synthesis.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex heterocyclic compounds.
• Dye and Pigment Manufacturing: Used in the production of high-performance dyes, pigments, and colorants, particularly azo dyes.
• Agrochemical Synthesis: Serves as a building block for developing advanced herbicides, fungicides, and plant growth regulators.
• Polymer and Material Science: Employed in the synthesis of specialty polymers, epoxy resin hardeners, and functionalized materials.
• Organic Synthesis & Research: A valuable reagent for academic and industrial R&D in creating novel chemical entities and conducting structure-activity relationship (SAR) studies.
• Ligand and Chelating Agent Precursor: Used to develop complexing agents for metal ions in analytical and industrial processes.

Basic Information

Product Name	4-Nitrophthalic Acid
CAS No.	610-27-5
Molecular Formula	C8H5NO6
Molecular Weight	211.13 g/mol
Synonyms	4-Nitro-1,2-benzenedicarboxylic Acid; 4-Nitro-o-phthalic Acid; 4-Nitrophthalic Acid; 1,2-Benzenedicarboxylic acid, 4-nitro-; NSC 403697; 4-Nitrobenzene-1,2-dicarboxylic Acid; 4-Nitrophthalic Acid (technical grade); 4-Nitrophthalic Acid (pure)
EINECS	210-222-9

Quality Control

Our 4-Nitrophthalic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure it meets the highest standards of purity and consistency. We provide detailed Certificates of Analysis (COA) with each shipment, documenting key parameters such as assay, identity, and impurity profiles. Our commitment to quality assurance ensures reliable performance in your most demanding applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and reducing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to protect from moisture.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	162°C - 168°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.