Description

5-[[4-[(4-Amino-6-Sodiosulfo-1-Naphthalenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-6-Hydroxynaphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing vibrant and stable colorants, particularly in applications requiring specific hue and fastness properties. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries for the production of dyes and pigments.

Application

• Textile Dyeing: A key intermediate for the synthesis of acid and direct dyes used on wool, silk, nylon, and paper.
• Ink Formulation: Used in the manufacture of colorants for inks in printing, writing, and marking applications.
• Pigment Production: Serves as a precursor for creating lakes and organic pigments with good lightfastness.
• Biological Staining: Potential use in the development of histological stains for laboratory and diagnostic purposes.
• Research & Development: Employed in chemical research for studying azo dye chemistry, photochemistry, and material science applications.
• Specialty Coatings: Can be utilized in the formulation of colored coatings and functional layers where specific color properties are required.

Basic Information

Product Name	5-[[4-[(4-Amino-6-Sodiosulfo-1-Naphthalenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-6-Hydroxynaphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	6262-04-0
Molecular Formula	C28H21N5O8S2Na2
Molecular Weight	681.60 g/mol
Synonyms	Acid Black 210; C.I. 28440; 5-[[4-[(4-Amino-6-sulfo-1-naphthyl)azo]-5-methyl-2-methoxyphenyl]azo]-6-hydroxy-2-naphthalenesulfonic acid disodium salt; 6-Hydroxy-5-[[4-[(4-amino-6-sulfo-1-naphthalenyl)azo]-5-methyl-2-methoxyphenyl]azo]-2-naphthalenesulfonic acid disodium salt; Disodium 5-[[4-[(4-amino-6-sulfo-1-naphthyl)azo]-5-methyl-2-methoxyphenyl]azo]-6-hydroxy-2-naphthalenesulfonate
EINECS	Contact for details

Quality Control

Our 5-[[4-[(4-Amino-6-Sodiosulfo-1-Naphthalenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-6-Hydroxynaphthalene-2-Sulfonic Acid Sodium Salt is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure high purity, consistent color value, and compliance with agreed-upon specifications. Comprehensive Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are available upon request.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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