Description

5-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sulfo-2-Naphthalenyl)Azo]-7-Sulfo-1-Naphthalenyl]Azo]Phenyl]Azo]-2-Hydroxybenzoic Acid Trisodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyazo structure, featuring multiple sulfonate groups, provides excellent chromophoric properties and solubility, making it a critical precursor for specialized dye synthesis. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors requiring precise colorants with specific fastness and application characteristics.

Application

This advanced azo dye intermediate serves as a key building block in the production of high-performance synthetic dyes and pigments. Its primary and related applications include:

• Textile Dye Synthesis: A crucial precursor for manufacturing acid dyes and direct dyes used on nylon, silk, wool, and paper.
• Inkjet Ink Formulations: Used in the development of specialized inks requiring high color strength, water solubility, and stability.
• Liquid Crystal Display (LCD) Color Filters: Potential use in creating colorants for electronic display applications due to its precise chromophore.
• Biological Staining Reagents: Serves as an intermediate for certain histological stains used in laboratory diagnostics.
• Specialty Pigment Production: Employed in the synthesis of complex organic pigments for coatings and plastics.
• Research & Development: A valuable compound for chemical research in dye chemistry, photochemistry, and material science.

Basic Information

Product Name	5-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sulfo-2-Naphthalenyl)Azo]-7-Sulfo-1-Naphthalenyl]Azo]Phenyl]Azo]-2-Hydroxybenzoic Acid Trisodium Salt
CAS No.	72152-90-0
Molecular Formula	C33H20N6O11S2 · 3Na
Molecular Weight	Contact for details
Synonyms	Trisodium 5-({4-[(4-{[6-amino-1-hydroxy-3-sulphonato-2-naphthyl]azo}-7-sulphonato-1-naphthyl)azo]phenyl}azo)-2-hydroxybenzoate; C.I. Acid Black 210; Acid Black 210; Azo Black 210; Black 210; Polyazo dye intermediate; 2-Hydroxy-5-[[4-[[4-[(6-amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-7-sulfo-1-naphthyl]azo]phenyl]azo]benzoic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance processes.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 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.