Description

Sodium 3-Chloro-4-Hydroxy-5-Nitrobenzenesulphonate is a high-purity, water-soluble aromatic sulfonate salt widely used as a key synthetic intermediate. Its value lies in its functionalized aromatic ring, which provides reactive sites for further chemical transformations, enabling the production of dyes, pigments, and specialty chemicals. This compound is essential for manufacturers and R&D laboratories in the dyestuff, agrochemical, and pharmaceutical industries seeking reliable, high-quality building blocks for complex synthesis.

Application

• Primary Intermediate for Dyes & Pigments: Serves as a crucial precursor in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color strength and fastness properties.
• Agrochemical Synthesis: Used in the manufacturing of certain herbicides and plant growth regulators, where its substituted benzene structure is incorporated into the active ingredient.
• Pharmaceutical Intermediate: Acts as a building block in the research and development of specific active pharmaceutical ingredients (APIs) and fine chemicals.
• Chemical Research & Development: Employed in academic and industrial labs for exploring new organic reactions and creating novel chemical entities.
• Specialty Chemical Production: Utilized in the synthesis of corrosion inhibitors, complexing agents, and other functional additives.

Basic Information

Product Name	Sodium 3-Chloro-4-Hydroxy-5-Nitrobenzenesulphonate
CAS No.	93981-28-3
Molecular Formula	C6H3ClNNaO6S
Molecular Weight	275.60 g/mol
Synonyms	3-Chloro-4-hydroxy-5-nitrobenzenesulfonic acid sodium salt; Sodium 3-chloro-4-hydroxy-5-nitrobenzenesulfonate; Benzenesulfonic acid, 3-chloro-4-hydroxy-5-nitro-, sodium salt (1:1); 5-Nitro-3-chloro-4-hydroxybenzenesulfonic acid sodium salt; 4-Hydroxy-3-chloro-5-nitrobenzenesulfonic acid sodium salt; CHNBS sodium salt; Light Yellow 2G intermediate (related)
EINECS	Contact for details

Quality Control

Our Sodium 3-Chloro-4-Hydroxy-5-Nitrobenzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing results for assay, related substances, and other critical parameters 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility (1% in Water)	Clear, yellow solution
pH (5% aqueous solution)	6.0 - 8.0

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