Description

Tetrasodium 5-[[4'-[[8-[[2,4-dihydroxy-3-[(2-methoxy-5-sulphonatophenyl)azo]phenyl]azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]salicylate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its complex molecular structure, which provides excellent chromophoric properties and stability in demanding applications. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical sectors seeking reliable and consistent performance in their coloration processes.

Application

• Primary Intermediate for Reactive and Direct Dyes: Serves as a key building block in the synthesis of high-grade dyes for cotton, wool, and nylon.
• Textile Colorant Production: Used in manufacturing dyes that offer excellent wash and light fastness for the textile industry.
• Inkjet and Printing Ink Formulations: Provides vibrant and stable colorants for high-performance industrial and digital printing inks.
• Specialty Pigment Synthesis: Acts as a precursor for creating complex organic pigments used in coatings and plastics.
• Laboratory and Research Chemical: Employed in R&D for developing new chromophores and studying azo dye chemistry.
• Biological Staining Reagents: Potential use in the development of histological stains due to its specific chromogenic structure.

Basic Information

Item	Details
Product Name	Tetrasodium 5-[[4'-[[8-[[2,4-dihydroxy-3-[(2-methoxy-5-sulphonatophenyl)azo]phenyl]azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]salicylate
CAS No.	93964-63-7
Molecular Formula	C52H34N8Na4O23S4
Molecular Weight	~1355.1 g/mol (Contact for exact details)
Synonyms	Acid Black 210 (C.I. 300317); Tetrasodium 5-[(4'-[(8-[(2,4-dihydroxy-3-[(2-methoxy-5-sulfonatophenyl)azo]phenyl)azo]-1-hydroxy-3,6-disulfonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl)azo]salicylate; C.I. Acid Black 210; CAS 93964-63-7; Azo dye intermediate 93964-63-7; Salicylate-based tetrasodium azo dye
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Each lot is analyzed against rigorous in-house specifications, which typically include parameters for assay (HPLC), identification (IR/UV-Vis), and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to reference spectrum
Identification (UV-Vis)	Conforms
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm

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