Description

Trisodium 8-[[4-[(4-Aminophenyl)Azo]-6-Sulphonatonaphthyl]Azo]-5-[(2-Hydroxy-6-Sulphonatonaphthyl)Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart strong, vibrant color properties in advanced dye synthesis. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance dyes and pigments. Its consistent quality and reliable performance make it a critical component for achieving precise color standards.

Application

• Primary Intermediate for Textile Dyes: Synthesis of direct, acid, and reactive dyes for coloring cotton, wool, silk, and nylon fibers.
• Pigment Manufacturing: Production of high-grade organic pigments used in paints, inks, and plastics.
• Specialty Ink Formulation: Key component in the manufacture of inks for digital printing, packaging, and security applications.
• Leather Dyeing: Used in the formulation of dyes for achieving deep, uniform colors on leather goods.
• Paper Coloring: Intermediate for dyes applied in the paper industry for specialty papers and packaging materials.
• Research & Development: Serves as a reference standard and building block in chemical R&D for novel chromophores and functional materials.

Basic Information

Product Name	Trisodium 8-[[4-[(4-Aminophenyl)Azo]-6-Sulphonatonaphthyl]Azo]-5-[(2-Hydroxy-6-Sulphonatonaphthyl)Azo]Naphthalene-2-Sulphonate
CAS No.	3626-30-0
Molecular Formula	C42H24N6Na3O13S3
Molecular Weight	994.81 g/mol
Synonyms	Acid Black 210; C.I. 28440; Trisodium 5-[[2-hydroxy-6-sulphonato-1-naphthyl]azo]-8-[[4-[(4-aminophenyl)azo]-6-sulphonato-1-naphthyl]azo]naphthalene-2-sulphonate; Direct Black 166; Azo Black 210; 1-Naphthalenesulfonic acid, 8-[[4-[(4-aminophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-5-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our Trisodium 8-[[4-[(4-Aminophenyl)Azo]-6-Sulphonatonaphthyl]Azo]-5-[(2-Hydroxy-6-Sulphonatonaphthyl)Azo]Naphthalene-2-Sulphonate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chromatic strength, and compliance with industry specifications. Comprehensive Certificates of Analysis (COA) detailing assay, impurity profile, and physical parameters 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). This material is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to moisture or direct light should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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