Description

Trisodium 4-Amino-3-[[4-[[[4-[(4-Amino-2-Hydroxyphenyl)Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]-5-Hydroxy-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble polyazo dye complex valued for its intense color and stability. This compound is engineered to deliver consistent performance and batch-to-batch reliability for demanding industrial applications. It is primarily utilized by manufacturers in the textile, leather, and specialty ink industries seeking robust and compliant colorants.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, including cotton, wool, and polyamide, offering excellent wash and light fastness.
• Leather Finishing: Used in the coloration of leather goods, providing deep, uniform shades with good adhesion.
• Paper Coloration: Employed in the production of specialty colored papers and paper products.
• Ink Manufacturing: A key component in formulating industrial inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific chromogenic properties.
• Research & Development: Serves as a chemical intermediate or reference standard in organic synthesis and analytical chemistry research.

Basic Information

Product Name	Trisodium 4-Amino-3-[[4-[[[4-[(4-Amino-2-Hydroxyphenyl)Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]-5-Hydroxy-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	70900-28-6
Molecular Formula	C39H24N9Na3O14S3
Molecular Weight	~975.82 g/mol
Synonyms	Acid Black 210; C.I. 300310; Trisodium 4-amino-5-hydroxy-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-6-[(4-sulfophenyl)azo]naphthalene-2,7-disulfonate; Polyazo dye, Black 210; Leather Black 210; Textile Black 210; 4-Amino-5-hydroxy-3-[[4-[[[4-[(4-amino-2-hydroxyphenyl)azo]phenyl]amino]carbonyl]phenyl]azo]-6-[(4-sulfophenyl)azo]naphthalene-2,7-disulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of Trisodium 4-Amino-3-[[4-[[[4-[(4-Amino-2-Hydroxyphenyl)Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]-5-Hydroxy-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate adheres to stringent quality management protocols. Every batch is analyzed to ensure high purity, consistent color strength, and compliance with relevant industry specifications. Comprehensive Certificates of Analysis (COA) detailing assay, impurity profile, and physical parameters are available upon request.

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 strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content (Sulfated)	≤ 30.0%
Heavy Metals (as Pb)	≤ 20 ppm

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