Description

3-Chloro-4-Hydroxy-5-Nitrobenzenesulphonic Acid is a versatile and high-purity aromatic sulfonic acid derivative, serving as a critical building block in advanced organic synthesis. Its unique substitution pattern makes it a valuable intermediate for creating complex molecules with specific functional properties. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty dye industries seeking reliable, high-quality intermediates for their production processes.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a sulfonated aromatic core.
• Agrochemical Synthesis: Used in the production of herbicides, pesticides, and plant growth regulators where its nitro and chloro groups facilitate further chemical modifications.
• Dye and Pigment Manufacturing: Acts as an intermediate for synthesizing azo dyes and other complex colorants, contributing to chromophore development.
• Chemical Research & Development: A valuable reagent for exploring new synthetic pathways and creating novel sulfonated compounds in academic and industrial R&D settings.
• Ligand and Complexing Agent Precursor: The functional groups can be utilized to develop specialized ligands for metal catalysis or chelation applications.
• Polymer Modification: Can be incorporated into polymer chains to introduce sulfonic acid groups, altering solubility and ionic characteristics.

Basic Information

Product Name	3-Chloro-4-Hydroxy-5-Nitrobenzenesulphonic Acid
CAS No.	83732-61-0
Molecular Formula	C6H4ClNO6S
Molecular Weight	253.62 g/mol
Synonyms	5-Nitro-3-chloro-4-hydroxybenzenesulfonic acid; 3-Chloro-4-hydroxy-5-nitrobenzenesulfonic acid; Benzenesulfonic acid, 3-chloro-4-hydroxy-5-nitro-; 4-Hydroxy-3-chloro-5-nitrobenzenesulfonic acid; 3-Chloro-4-hydroxy-5-nitrobenzene-1-sulfonic acid; 3-Chloro-4-hydroxy-5-nitro-phenylsulfonic acid
EINECS	Contact for details

Quality Control

Our 3-Chloro-4-Hydroxy-5-Nitrobenzenesulphonic Acid is produced and tested under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and compliance with your quality 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 strong bases and incompatible materials. Due to its nature as a strong acid/organic solvent, ensure containers are kept upright and sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 1.5%

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