Description

Disodium 6-Amino-3-[(4-Chloro-5-Methyl-2-Sulphonatophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate 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 shades and fastness properties. It is a critical raw material for manufacturers in the textile dyeing, ink formulation, and specialty pigment industries seeking reliable and consistent performance.

Application

• Primary intermediate for the synthesis of azo dyes and pigments, especially for cotton and other cellulosic fibers.
• Key component in the production of reactive dyes and direct dyes used in textile printing and dyeing.
• Used in the formulation of inks for various printing applications, including inks for packaging and specialty papers.
• Potential precursor for colorants in the leather and paper industries.
• Employed in research and development for creating novel chromophoric systems and functional dyes.
• May serve as a starting material for biological stains and analytical reagents in laboratory settings.

Basic Information

Product Name	Disodium 6-Amino-3-[(4-Chloro-5-Methyl-2-Sulphonatophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	68227-39-4
Molecular Formula	C17H12ClN3Na2O8S2
Molecular Weight	547.86 g/mol
Synonyms	6-Amino-3-[(4-chloro-5-methyl-2-sulfophenyl)azo]-4-hydroxy-2-naphthalenesulfonic acid, disodium salt; C.I. Azoic Diazo Component 44; Azoic Diazo 44; Disodium 6-amino-4-hydroxy-3-[(4-chloro-5-methyl-2-sulfophenyl)azo]-2-naphthalenesulfonate; 68227-39-4; Azo dye intermediate 68227-39-4
EINECS	Contact for details

Quality Control

Our Disodium 6-Amino-3-[(4-Chloro-5-Methyl-2-Sulphonatophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment 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 initial use to prevent absorption of atmospheric moisture, which may affect product performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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