Description

Sodium 4-[[4-[(4-Hydroxy-m-Tolyl)Azo]Phenyl]Amino]-n-(Methylsulphonyl)-3-Nitrobenzenesulphonamidate is a high-purity azo dye intermediate and specialty chemical compound, identified by CAS No. 75198-81-1. This product is critical for synthesizing complex colorants and pigments with specific performance characteristics. It is primarily required by manufacturers in the dyes and pigments, textile, and advanced materials industries seeking reliable, high-quality intermediates for their production processes.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the production of colorants for textile fibers and fabrics.
• Used in the manufacture of specialty dyes for inks and coatings.
• Potential intermediate in the research and development of functional dyes for optical or electronic applications.
• Employed in the synthesis of colorants for plastics and polymers.
• Reagent for analytical chemistry and colorimetric detection methods.

Basic Information

Item	Details
Product Name	Sodium 4-[[4-[(4-Hydroxy-m-Tolyl)Azo]Phenyl]Amino]-n-(Methylsulphonyl)-3-Nitrobenzenesulphonamidate
CAS No.	75198-81-1
Molecular Formula	C20H17N5NaO7S2
Molecular Weight	526.50 g/mol
Synonyms	4-[[4-[(4-Hydroxy-3-methylphenyl)azo]phenyl]amino]-N-(methylsulfonyl)-3-nitrobenzenesulfonamide, sodium salt; Sodium 4-((4-((4-hydroxy-3-methylphenyl)diazenyl)phenyl)amino)-N-(methylsulfonyl)-3-nitrobenzenesulfonamidate; Azo dye intermediate 75198-81-1; Benzenesulfonamide, 4-[[4-[(4-hydroxy-3-methylphenyl)azo]phenyl]amino]-N-(methylsulfonyl)-3-nitro-, sodium salt; Sulfonamide azo dye sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-[[4-[(4-Hydroxy-m-Tolyl)Azo]Phenyl]Amino]-n-(Methylsulphonyl)-3-Nitrobenzenesulphonamidate is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) with detailed specifications for identity, assay, 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). Due to its hygroscopic nature, protect from moisture and store under conditions of low humidity. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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