Description

Sodium 6-Amino-5-[(2,5-Dichlorophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity azo dye intermediate and specialty chemical. This compound is valued for its precise molecular structure, which is critical for synthesizing vivid and stable colorants. It is primarily required by manufacturers in the dye and pigment industries for producing high-performance colorants used in textiles, inks, and specialty coatings.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-quality, chlorinated azo dyes, particularly for shades of red, violet, and blue.
• Textile Dyeing and Printing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Ink Manufacturing: Employed in the formulation of pigments for industrial inks, including those used in packaging and printing.
• Specialty Pigments: A precursor for creating complex, high-performance pigments used in plastics, paints, and coatings.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo coupling reactions.
• Analytical Reagent: Can function as a staining agent or a colorimetric indicator in specific laboratory analyses.

Basic Information

Product Name	Sodium 6-Amino-5-[(2,5-Dichlorophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	67786-24-7
Molecular Formula	C16H10Cl2N4NaO4S
Molecular Weight	463.23 g/mol
Synonyms	6-Amino-5-[(2,5-dichlorophenyl)azo]-4-hydroxy-2-naphthalenesulfonic acid sodium salt; C.I. 18055; Sodium 6-amino-4-hydroxy-5-[(2,5-dichlorophenyl)azo]-2-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 6-amino-5-[(2,5-dichlorophenyl)azo]-4-hydroxy-, sodium salt; Azo dye intermediate 67786-24-7; 5-[(2,5-Dichlorophenyl)azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 6-Amino-5-[(2,5-Dichlorophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Contact for details

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