Description

6-Amino-3-[[5-Anilinosulphonyl-2-Methylphenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid is a high-purity azo dye intermediate of significant commercial importance. Its primary value lies in its role as a key precursor for synthesizing specific, high-performance dyes and pigments, offering excellent color properties and structural stability. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced coloring agents.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial building block in the synthesis of complex, high-value azo dyes, particularly for textile applications requiring specific shades and fastness properties.
• Specialty Pigment Production: Used in the manufacture of organic pigments for inks, coatings, and plastics where color strength and durability are paramount.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Functional Dye Synthesis: Potential precursor for creating functional dyes used in non-textile applications, such as in optical data storage or as biological stains.

Basic Information

Product Name	6-Amino-3-[[5-Anilinosulphonyl-2-Methylphenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	85409-54-7
Molecular Formula	C23H19N4O6S2
Molecular Weight	511.55 g/mol
Synonyms	6-Amino-3-[(5-Anilinosulfonyl-2-methylphenyl)azo]-4-hydroxy-2-naphthalenesulfonic Acid; C.I. Azoic Diazo Component; Azo Dye Intermediate 85409-54-7; 4-Hydroxy-6-amino-3-[(5-(phenylamino)sulfonyl-2-methylphenyl)azo]-2-naphthalenesulfonic Acid; 2-Naphthalenesulfonic acid, 6-amino-3-[[5-(phenylamino)sulfonyl-2-methylphenyl]azo]-4-hydroxy-; Diazonium salt precursor
EINECS	Contact for details

Quality Control

Our production of 6-Amino-3-[[5-Anilinosulphonyl-2-Methylphenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent performance in downstream synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in alkaline aqueous solutions

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