Description

Disodium 5-[[4-[5-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1H-Benzimidazole-2-Yl]Phenyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages and sulfonate groups, makes it a critical precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vibrant, color-fast products with specific functional properties.

Application

• Textile Dye Intermediate: A key building block for the synthesis of high-performance, wash-fast azo dyes used in coloring natural and synthetic fibers.
• Inkjet Ink Pigment Synthesis: Used in the production of advanced colorants for high-resolution digital and industrial printing inks, offering excellent color gamut and stability.
• Functional Dye Manufacturing: Serves as a precursor for dyes used in specialized applications such as liquid crystal displays (LCDs) and optical data storage.
• Biological Staining Agent Synthesis: Employed in the development of histological and cytological stains for laboratory and diagnostic use.
• Research & Development: A valuable chemical for academic and industrial R&D focused on novel chromophores, dye chemistry, and material science.

Basic Information

Item	Details
Product Name	Disodium 5-[[4-[5-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1H-Benzimidazole-2-Yl]Phenyl]Azo]Salicylate
CAS No.	64791-32-8
Molecular Formula	C30H19N7Na2O8S
Molecular Weight	699.56 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 5-[(4-{[5-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1H-benzimidazol-2-yl]phenyl}azo)salicylate; 2-Naphthalenesulfonic acid, 7-amino-1-hydroxy-3-[[2-(4-[(2-hydroxy-5-sulfophenyl)azo]phenyl)-1H-benzimidazol-5-yl]azo]-, disodium salt; C.I. Acid Black 210; Benzimidazolyl azo dye intermediate; Azo dye precursor 64791-32-8
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4-[5-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1H-Benzimidazole-2-Yl]Phenyl]Azo]Salicylate adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and solubility are provided and 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). 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 and stability.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear solution at 1%
Heavy Metals (as Pb)	≤ 20 ppm

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