Description

Disodium 5-[[4-(4-Cyclohexylphenoxy)-2-Sulphonatophenyl]Azo]-6-[(2,6-Dimethylphenyl)Amino]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. It serves as a critical precursor for synthesizing specialized dyes and pigments, offering excellent color strength and stability. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce high-performance colorants.

Application

This versatile azo dye intermediate enables the production of advanced colorants across several key industrial sectors.

• Textile Dyeing: Primary application in the synthesis of reactive and acid dyes for coloring natural and synthetic fibers like cotton, wool, and nylon.
• Ink Manufacturing: Used as a key component in formulating high-quality printing inks for packaging, publications, and digital applications.
• Industrial Pigments: Acts as a precursor for creating organic pigments used in plastics, paints, and specialty coatings.
• Leather Processing: Employed in the production of dyes for the uniform and durable coloring of leather goods.
• Paper Coloration: Suitable for manufacturing dyes used in the surface coloring and coating of high-grade papers.
• Research & Development: Serves as a valuable chemical entity in R&D labs for developing novel chromophores and studying dye chemistry.

Basic Information

Item	Details
Product Name	Disodium 5-[[4-(4-Cyclohexylphenoxy)-2-Sulphonatophenyl]Azo]-6-[(2,6-Dimethylphenyl)Amino]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	71720-89-3
Molecular Formula	C36H33N3Na2O9S2
Molecular Weight	761.76 g/mol
Synonyms	C.I. Acid Red 337; Disodium 6-[(2,6-dimethylphenyl)amino]-4-hydroxy-5-[[4-(4-cyclohexylphenoxy)-2-sulfophenyl]azo]-3-naphthalenesulfonate; Acid Red 337; 5-[[4-(4-Cyclohexylphenoxy)-2-sulfophenyl]azo]-6-[(2,6-dimethylphenyl)amino]-4-hydroxy-2-naphthalenesulfonic acid, disodium salt; C.I. 18760; Lanasyn Red 2G; Telon Red K-2G; Dye intermediate for Acid Red 337.
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4-(4-Cyclohexylphenoxy)-2-Sulphonatophenyl]Azo]-6-[(2,6-Dimethylphenyl)Amino]-4-Hydroxynaphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity, consistent color value, and batch-to-batch uniformity, meeting the exacting standards required for dye synthesis. Comprehensive Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request.

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 to maintain product integrity.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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