Description

Trisodium 4-Amino-3-[[4-[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Amino]-3-Sulphonatophenyl]Azo]-5-Hydroxy-6-(Phenylazo)Naphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart specific, vibrant hues and its excellent binding properties in various substrates. It is primarily sought after by manufacturers in the textile, leather, and specialty ink industries for the production of high-performance dyes and pigments.

Application

• Textile Dyeing: A key intermediate for synthesizing reactive and direct dyes for cotton, wool, and nylon fibers.
• Leather Coloring: Used in the formulation of dyes for imparting deep, uniform color to leather goods.
• Ink Manufacturing: Serves as a critical component in the production of specialty inks for packaging and security printing.
• Paper Staining: Employed in the coloring of high-grade papers and decorative materials.
• Biological Staining: Potential use as a histological stain in laboratory settings, subject to specific purity grades.
• Research & Development: Used as a standard or intermediate in chemical research for developing new chromophores and functional materials.

Basic Information

Item	Detail
Product Name	Trisodium 4-Amino-3-[[4-[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Amino]-3-Sulphonatophenyl]Azo]-5-Hydroxy-6-(Phenylazo)Naphthalene-2,7-Disulphonate
CAS No.	93982-64-0
Molecular Formula	C40H24N8Na3O14S3
Molecular Weight	Approx. 1021.82 g/mol
Synonyms	Acid Black 210; C.I. 300310; Trisodium 4-amino-5-hydroxy-3,6-bis[[4-[(2-hydroxy-5-sulfophenyl)azo]phenyl]amino]-2,7-naphthalenedisulfonate; Reactive Black 5 related intermediate; Azo dye intermediate 93982-64-0; 4-Amino-5-hydroxy-3,6-bis({4-[(2-hydroxy-5-sulfophenyl)azo]phenyl}amino)-2,7-naphthalenedisulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every 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 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 performance and stability.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	Max. 20 ppm

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