Description

Tetrasodium 5-(acetylamino)-3-[[4-[[3,5-dimethyl-4-[(8-sulphonato-2-naphthyl)azo]phenyl]azo]-2-ethoxy-6-sulphonato-1-naphthyl]azo]-4-hydroxynaphthalene-2,7-disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound serves as a critical precursor for synthesizing vibrant and stable dyes, particularly in applications demanding high color fastness and chemical resistance. It is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce high-performance colorants.

Application

• Textile Dyeing: A key intermediate for producing reactive and direct dyes for cotton, wool, and nylon, offering excellent wash and light fastness.
• Ink Manufacturing: Used in the synthesis of pigments for industrial inks, including those for packaging and digital printing.
• Leather Coloring: Employed in the production of dyes for leather finishing, providing rich, durable colors.
• Paper Coloring: Serves as a precursor for dyes used in specialty paper and board products.
• Plastic and Polymer Coloring: Used to develop colorants for plastics and synthetic fibers where dispersion and thermal stability are required.
• Biological Staining: Potential use as an intermediate for histological stains and indicators in laboratory settings.
• Research & Development: A valuable chemical for R&D in novel dye chemistry and material science applications.

Basic Information

Product Name	Tetrasodium 5-(acetylamino)-3-[[4-[[3,5-dimethyl-4-[(8-sulphonato-2-naphthyl)azo]phenyl]azo]-2-ethoxy-6-sulphonato-1-naphthyl]azo]-4-hydroxynaphthalene-2,7-disulphonate
CAS No.	6428-18-8
Molecular Formula	C48H34N8Na4O19S4
Molecular Weight	~1230.0 g/mol (Contact for exact details)
Synonyms	Acid Black 210; C.I. 300310; Tetrasodium 1-amino-2-[[4-[[4-[(7-acetylamino-4-hydroxy-3-sulphonato-2-naphthyl)azo]-3-ethoxy-2-sulphonatophenyl]azo]-2,6-dimethylphenyl]azo]-8-hydroxynaphthalene-3,6-disulphonate; Reactive Black 5 related intermediate; Azo dye intermediate 6428-18-8; 5-Acetamido-4-hydroxy-3-[[4-[[4-[(8-sulfo-2-naphthyl)azo]-3,5-dimethylphenyl]azo]-2-ethoxy-5-sulfo-1-naphthyl]azo]-2,7-naphthalenedisulfonic acid tetrasodium salt
EINECS	Contact for details

Quality Control

Our tetrasodium azo dye intermediate is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including HPLC for assay and impurity profiling, spectrophotometry for color strength, and standard identification tests. A Certificate of Analysis (COA) detailing purity, heavy metal content, and other critical parameters is provided with every 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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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