Description

Sodium p-[[4,6-Diamino-5-(Phenylazo)-m-Tolyl]Azo]Benzenesulphonate is a high-purity, synthetic azo dye intermediate of significant commercial importance. This compound is valued for its role in producing vibrant and stable colorants, particularly in specialized applications requiring specific chromophoric properties. It is primarily sought by manufacturers in the dyes and pigments, textile, and specialty chemical industries for the synthesis of complex color molecules.

Application

• Primary Intermediate for Azo Dyes: Key building block in the synthesis of complex, high-performance azo dyes and pigments.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Specialty Inks: A precursor for colorants used in high-quality printing inks, including for packaging and security applications.
• Leather Coloring: Employed in the manufacture of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the production of dyes for specialty paper products.
• Research & Development: Serves as a critical reagent in chemical research for developing new chromophores and studying azo coupling reactions.
• Plastics and Polymers: Potential use as a colorant intermediate for certain engineering plastics and polymers.

Basic Information

Item	Detail
Product Name	Sodium p-[[4,6-Diamino-5-(Phenylazo)-m-Tolyl]Azo]Benzenesulphonate
CAS No.	83968-65-4
Molecular Formula	C25H20N7NaO3S
Molecular Weight	521.53 g/mol
Synonyms	Sodium 4-[[4,6-diamino-5-(phenylazo)-2-methylphenyl]azo]benzenesulphonate; C.I. 11270; Benzenesulfonic acid, 4-[[4,6-diamino-5-(2-phenyldiazenyl)-2-methylphenyl]azo]-, sodium salt (1:1); Azoic Diazo Component 11270; Sodium 4-((4,6-diamino-5-(phenyldiazenyl)-2-methylphenyl)diazenyl)benzenesulfonate; Dye Intermediate 83968-65-4
EINECS	Contact for details

Quality Control

Our Sodium p-[[4,6-Diamino-5-(Phenylazo)-m-Tolyl]Azo]Benzenesulphonate is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee it meets your precise application requirements.

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 after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Freely soluble

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