Description

Disodium 8-(Phenylamino)-5-[[4-(Phenylazo)-7-Sulphonato-1-Naphthyl]Azo]Naphthalenesulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its primary value lies in its role as a key precursor for synthesizing vibrant and stable dyes and pigments, particularly for textiles, inks, and specialty coatings. This compound is essential for manufacturers and R&D laboratories seeking to produce high-performance colorants with excellent fastness properties. Its consistent quality and reliable performance make it a critical component in the supply chain for advanced color chemistry.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial building block in the synthesis of high-value, complex azo dyes for textiles (cotton, silk, nylon) and industrial pigments.
• Textile Dyeing and Printing: Used in the production of dyes for achieving specific, durable shades with good light and wash fastness in fabric applications.
• Ink Manufacturing: A key component in formulating colorants for various printing inks, including packaging, publication, and specialty inks.
• Leather Coloring: Employed in the synthesis of dyes used for coloring leather goods, providing rich and stable colors.
• Paper Coloring: Used in the production of dyes for tinting paper products, including specialty papers and packaging materials.
• Research & Development: Serves as a standard or experimental compound in chemical research for developing new chromophores and studying dye chemistry.
• Specialty Coatings and Paints: Acts as an intermediate for colorants used in industrial and artistic paints and coatings requiring specific color properties.

Basic Information

Product Name	Disodium 8-(Phenylamino)-5-[[4-(Phenylazo)-7-Sulphonato-1-Naphthyl]Azo]Naphthalenesulphonate
CAS No.	6406-30-0
Molecular Formula	C34H22N6Na2O7S2
Molecular Weight	728.66 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 8-anilino-5-[[4-(phenylazo)-7-sulphonato-1-naphthyl]azo]naphthalene-2-sulphonate; 8-(Phenylamino)-5-[[4-(phenylazo)-7-sulphonato-1-naphthyl]azo]naphthalene-2-sulphonic acid disodium salt; Azo Black 210; C.I. Acid Black 210; Benzenesulfonic acid, 8-(phenylamino)-5-[[4-(phenylazo)-7-sulfo-1-naphthalenyl]azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 8-(Phenylamino)-5-[[4-(Phenylazo)-7-Sulphonato-1-Naphthyl]Azo]Naphthalenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with agreed specifications. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

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

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