Description

5-Hydroxy-2-Nitrobenzoic Acid is a versatile aromatic compound that serves as a key synthetic intermediate in the production of more complex molecules. Its unique structure, featuring both a phenolic hydroxyl and a nitro-substituted carboxylic acid, makes it a valuable building block for fine chemical synthesis. This product is essential for research and development laboratories, pharmaceutical manufacturers, and agrochemical producers seeking to develop new active ingredients or advanced materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with nitro-aromatic or salicylic acid-derived structures.
• Agrochemical Synthesis: Used in the development of herbicides, fungicides, and other crop protection agents where its nitro and hydroxy functional groups are incorporated into the final molecule.
• Dye and Pigment Manufacturing: Acts as a starting material for the production of azo dyes and other complex colorants, leveraging its ability to undergo diazotization and coupling reactions.
• Research & Development: Employed in organic chemistry research as a model compound for studying electrophilic aromatic substitution, nitration, and carboxylation reactions.
• Coordination Chemistry: Serves as a ligand for metal complexes due to its oxygen-donor atoms (carboxylate and phenolate), useful in catalysis and material science.
• Fine Chemical Production: Utilized in the custom synthesis of specialty chemicals, including UV absorbers, polymer modifiers, and corrosion inhibitors.

Basic Information

Product Name	5-Hydroxy-2-Nitrobenzoic Acid
CAS No.	610-37-7
Molecular Formula	C7H5NO5
Molecular Weight	183.12 g/mol
Synonyms	2-Nitro-5-hydroxybenzoic Acid; 5-Hydroxy-2-nitrobenzoic Acid; 3-Carboxy-4-nitrophenol; 4-Nitrosalicylic Acid; 2-Nitro-5-hydroxybenzoic acid; 5-Hydroxy-2-nitro-benzoic acid; Benzoic acid, 5-hydroxy-2-nitro-; 4-Nitro-2-hydroxybenzoic acid (isomer)
EINECS	210-223-5

Quality Control

Our 5-Hydroxy-2-Nitrobenzoic 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. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	220 - 225 °C
Loss on Drying	≤ 1.0%
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.