Description

3-Nitrophthalic Acid is a key aromatic nitro-carboxylic acid derivative, serving as a versatile and high-value synthetic intermediate in advanced organic synthesis. Its importance lies in providing a functionalized aromatic core for constructing complex molecules, particularly in the synthesis of dyes, pigments, and specialized polymers. This compound is essential for R&D laboratories and industrial manufacturers in the fine chemical, pharmaceutical, and agrochemical sectors seeking to introduce nitro and carboxylic acid functionalities into their target structures.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs) and other bioactive compounds.
• Dye & Pigment Manufacturing: Used in the production of azo dyes, pigments, and other colorants, where the nitro and acid groups modify color properties and solubility.
• Agrochemical Synthesis: Serves as a precursor in the development of herbicides, insecticides, and plant growth regulators.
• Polymer & Material Science: Acts as a monomer or modifier in the synthesis of specialty polymers, including polyimides and epoxy resins, to enhance thermal or mechanical properties.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D for nitration studies, ring functionalization, and the preparation of complex organic molecules.
• Ligand & Chelating Agent Precursor: Used to synthesize ligands for metal catalysis and chelating agents for various industrial processes.

Basic Information

Product Name	3-Nitrophthalic Acid
CAS No.	603-11-2
Molecular Formula	C8H5NO6
Molecular Weight	211.13 g/mol
Synonyms	3-Nitrophthalic Acid; 3-Nitro-1,2-benzenedicarboxylic Acid; 1,2-Benzenedicarboxylic acid, 3-nitro-; 3-Nitrophthalsäure (German); Acide 3-nitrophtalique (French); NSC 403697; 3-Nitrobenzene-1,2-dicarboxylic acid
EINECS	210-045-4

Quality Control

Our 3-Nitrophthalic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for fine chemical synthesis and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	215 - 220 °C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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