Description

7-[[4-[[4-[[4-[(4-Aminobenzoyl)Amino]-2-Methylphenyl]Azo]-2-Methylphenyl]Azo]-2-Methylphenyl]Azo]-1,3-Naphthalenedisulfonic Acid is a high-purity, polyazo dye intermediate characterized by its complex molecular structure and functional sulfonic acid groups. This compound is essential for synthesizing specialized dyes and pigments, offering excellent color strength and binding properties for demanding industrial applications. It is primarily sought by manufacturers in the textile, ink, and specialty chemical sectors who require consistent quality and reliable supply chains for their production processes.

Application

• Textile Dye Intermediate: A key precursor for the synthesis of high-performance azo dyes used in coloring natural and synthetic fibers.
• Inkjet Ink Formulation: Used in the production of specialized inks, particularly for industrial printing, where color fastness and stability are critical.
• Functional Pigment Synthesis: Serves as a building block for creating complex organic pigments with specific optical or electronic properties.
• Research & Development: Employed in chemical R&D for studying azo coupling reactions and developing novel chromophores.
• Analytical Chemistry Reagent: Can be utilized as a staining agent or a complexometric indicator in specific laboratory methodologies.
• Specialty Coatings: Incorporated into formulations for coatings where specific color properties and chemical resistance are required.

Basic Information

Product Name	7-[[4-[[4-[[4-[(4-Aminobenzoyl)Amino]-2-Methylphenyl]Azo]-2-Methylphenyl]Azo]-2-Methylphenyl]Azo]-1,3-Naphthalenedisulfonic Acid
CAS No.	71033-06-2
Molecular Formula	C44H34N10O8S2
Molecular Weight	895.93 g/mol
Synonyms	1,3-Naphthalenedisulfonic acid, 7-[[4-[[4-[[4-[(4-aminobenzoyl)amino]-2-methylphenyl]azo]-2-methylphenyl]azo]-2-methylphenyl]azo]-; Acid Black 210; C.I. 300310; 7-[[4-[[4-[[4-[(4-Aminobenzoyl)Amino]o-tolyl]azo]o-tolyl]azo]o-tolyl]azo]-1,3-naphthalenedisulfonic acid; Polyazo dye intermediate 71033-06-2; Tetrakisazo dye intermediate
EINECS	Contact for details

Quality Control

Our 7-[[4-[[4-[[4-[(4-Aminobenzoyl)Amino]-2-Methylphenyl]Azo]-2-Methylphenyl]Azo]-2-Methylphenyl]Azo]-1,3-Naphthalenedisulfonic Acid is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) detailing key parameters are provided to guarantee traceability and compliance with your quality 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). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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