Description

Sodium 3-Amino-5-Chloro-2-Hydroxybenzenesulphonate is a key organic intermediate and coupling agent, primarily valued for its role in the synthesis of azo dyes and pigments. This compound is essential for producing vibrant and colorfast hues, particularly in the textile and leather industries. It is a critical raw material for manufacturers of dyes, specialty chemicals, and research institutions developing novel colorants and functional materials.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial diazo component in the synthesis of high-performance, colorfast azo dyes for textiles, leather, and inks.
• Textile Dyeing & Printing: Used in the production of dyes for cotton, wool, silk, and synthetic fibers, offering excellent wash and light fastness.
• Leather Finishing: A key ingredient in dyes and colorants for the leather tanning and finishing industry.
• Specialty Chemical Synthesis: Acts as a building block for more complex chemical compounds used in various industrial applications.
• Research & Development: Employed in academic and industrial R&D labs for developing new dye molecules, functional materials, and analytical reagents.
• Paper Coloring: Can be utilized in the manufacture of dyes for specialty paper products.

Basic Information

Product Name	Sodium 3-Amino-5-Chloro-2-Hydroxybenzenesulphonate
CAS No.	95873-47-5
Molecular Formula	C6H5ClNNaO4S
Molecular Weight	245.62 g/mol
Synonyms	3-Amino-5-chloro-2-hydroxybenzenesulfonic acid sodium salt; Sodium 3-amino-5-chloro-2-phenolsulfonate; 5-Chloro-2-hydroxy-3-aminobenzenesulfonic acid sodium salt; Benzenesulfonic acid, 3-amino-5-chloro-2-hydroxy-, monosodium salt; Azoic Coupling Component 13 sodium salt; CL 37520 (Colour Index reference); Coupling agent for azo dyes
EINECS	Contact for details

Quality Control

Our Sodium 3-Amino-5-Chloro-2-Hydroxybenzenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance for its intended industrial applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is available upon request to support your quality assurance protocols.

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	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content	≤ 2.0%
Solubility	Soluble in water

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