Description

Tetrasodium 5,5'-[Iminobis[(1-Hydroxy-3-Sulphonato-6,2-Naphthylene)Azo(5-Methoxy-2-Methyl-4,1-Phenylene)Azo]]Bis(Salicylate) is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex, multi-functional structure makes it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, stable colors with specific technical properties.

Application

This advanced chemical intermediate serves as a key building block in the production of sophisticated colorants. Its primary and related applications include:

• Primary precursor for high-grade azo dyes used in textile dyeing and printing.
• Manufacturing of pigments for industrial inks, including packaging and security inks.
• Synthesis of functional dyes for specialized applications in leather coloring.
• Research and development of novel chromophores in academic and industrial laboratories.
• Production of colorants for specialty papers and decorative materials.

Basic Information

Product Name	Tetrasodium 5,5'-[Iminobis[(1-Hydroxy-3-Sulphonato-6,2-Naphthylene)Azo(5-Methoxy-2-Methyl-4,1-Phenylene)Azo]]Bis(Salicylate)
CAS No.	6535-56-4
Molecular Formula	C54H36N6Na4O20S2
Molecular Weight	~1250.0 g/mol (Contact for details)
Synonyms	Acid Black 210; C.I. 300310; Tetrasodium 5,5'-[iminobis[(1-hydroxy-3-sulphonato-6,2-naphthylene)azo(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(salicylate); 5,5'-[Iminobis[(1-hydroxy-3-sulphonato-6,2-naphthylene)azo(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(salicylic acid) tetrasodium salt; Azo Dye Intermediate 6535-56-4; Black 210 (Acid); C.I. Acid Black 210
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content	Max. 5.0%
Solubility (in Water)	Freely soluble

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