4-Amino-3-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulpho-2-Naphthyl)Azo]-2,2'-Disulpho[1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid, Sodium Salt CAS NO 83221-64-1

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CAS No.:83221-64-1

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

4-Amino-3-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulpho-2-Naphthyl)Azo]-2,2'-Disulpho[1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, polyfunctional azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulphonic acid groups and azo linkages, provides exceptional chromophoric strength and water solubility, making it a critical building block for advanced colorants. This compound is primarily sought by manufacturers in the textile, ink, and specialty chemical sectors for synthesizing high-value, wash-fast dyes and pigments.

Application

Primary Intermediate for Reactive Dyes: A key precursor in the synthesis of high-performance reactive dyes for cotton, wool, and nylon, valued for their brilliant shades and excellent wet-fastness properties.
Manufacture of Acid Dyes: Used in the production of acid dyes for coloring silk, wool, and polyamide fibers, where its sulphonate groups ensure good leveling and solubility.
Specialty Ink Formulations: Serves as a crucial component in creating specialized inks for jet printing, security printing, and other high-tech applications requiring precise color properties.
Functional Pigment Synthesis: Employed in the development of functional organic pigments and colorants for plastics, coatings, and advanced materials.
Research & Development: Used in chemical R&D laboratories for exploring novel chromophores, dye-sensitized solar cells (DSSCs), and other photonic materials.

Basic Information


Product Name	4-Amino-3-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulpho-2-Naphthyl)Azo]-2,2'-Disulpho[1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	83221-64-1
Molecular Formula	C32H19N6O17S6Na4 (or related sodium salt form)
Molecular Weight	Contact for details
Synonyms	Acid Black 210
C.I. 300310
4-Amino-5-hydroxy-3-[[4'-[2-(8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)diazenyl][1,1'-biphenyl]-2,2',4-trisulfonyl]diazenyl]-2,7-naphthalenedisulfonic acid, sodium salt
Reactive Black 5 related intermediate
Polyazo dye intermediate
Hexasulfonated azo dye precursor
Contact for additional trade names
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity required for sensitive synthesis processes. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent absorption of atmospheric moisture, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95% (typical >97%)
Moisture Content (KF)	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Sulfated Ash	Contact for details