Description

4-[[2,4-Diamino-5-[(3-Sulphophenyl)Azo]Phenyl]Azo]-2-[[2,6-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]Benzenesulphonic Acid is a high-purity, complex azo dye intermediate essential for producing vivid and durable synthetic colors. This compound matters for its role in creating specialized dyes with excellent color fastness and application performance in demanding industrial processes. It is primarily needed by manufacturers in the textile, leather, and specialty ink industries seeking reliable, high-quality intermediates for their production lines.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the manufacturing of dyes for textile fibers, including nylon, silk, and wool.
• Used in the production of colorants for leather finishing and dyeing.
• Essential for formulating specialized inks, such as those for jet printing and security inks.
• Potential use as a colorant or intermediate in the production of paper and packaging materials.
• Research and development of novel functional dyes for optical or electronic applications.

Basic Information

Product Name	4-[[2,4-Diamino-5-[(3-Sulphophenyl)Azo]Phenyl]Azo]-2-[[2,6-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]Benzenesulphonic Acid
CAS No.	97404-12-1
Molecular Formula	C30H22N10O10S2
Molecular Weight	746.69 g/mol
Synonyms	Acid Black 210; C.I. 300310; Benzenesulfonic acid, 4-[[2,4-diamino-5-[(3-sulfophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]-; 4-((2,4-Diamino-5-((3-sulfophenyl)diazenyl)phenyl)diazenyl)-2-((2,6-dihydroxy-3-((4-nitrophenyl)diazenyl)phenyl)diazenyl)benzenesulfonic acid; Azo Dye Intermediate 97404-12-1; Black Dye Intermediate 210; Leather Black Dye Intermediate
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is analyzed to confirm identity, purity, and consistency, supported by a comprehensive Certificate of Analysis (COA) available upon request. We adhere to strict quality management protocols to guarantee the reliability required for industrial-scale manufacturing.

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 sealed to prevent absorption of atmospheric moisture.

Specification

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

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