Description

3-[[4-(Acetylamino)Phenyl]Azo]-5-Amino-6-[[4-[[4-[(2,4-Diaminophenyl)Azo]Phenyl]Amino]-3-Sulfophenyl]Azo]-4-Hydroxy-2,7-Naphthalenedisulfonic Acid Trisodium Salt is a high-purity, polyazo dye intermediate of significant commercial importance. This compound is valued for its ability to impart deep, complex shades and its role in synthesizing specialized dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Primary Intermediate for Polyazo Dyes: Serves as a critical building block in the synthesis of high-grade, complex black, blue, and green direct and reactive dyes for textiles.
• Specialty Ink Manufacturing: Used in the production of pigments for high-quality printing inks, including those for packaging and security applications.
• Industrial Coatings and Paints: Employed to develop colorants for coatings that require specific lightfastness and chemical resistance properties.
• Research & Development: Utilized in chemical R&D for creating novel chromophores and studying azo dye chemistry and applications.
• Leather Dyeing: Acts as an intermediate for dyes used in the leather tanning and finishing industry.
• Paper Coloring: Used in the manufacture of dyes for specialty paper products.

Basic Information

Item	Detail
Product Name	3-[[4-(Acetylamino)Phenyl]Azo]-5-Amino-6-[[4-[[4-[(2,4-Diaminophenyl)Azo]Phenyl]Amino]-3-Sulfophenyl]Azo]-4-Hydroxy-2,7-Naphthalenedisulfonic Acid Trisodium Salt
CAS No.	72894-19-0
Molecular Formula	C40H30N12Na3O14S4
Molecular Weight	~1124.02 g/mol (Contact for exact details)
Synonyms	Direct Black 22 (Intermediate); Trisodium 5-amino-3-[[4-(acetylamino)phenyl]azo]-6-[[4-[[4-[(2,4-diaminophenyl)azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-2,7-naphthalenedisulfonate; C.I. 35435; Azo Black Dye Intermediate; Polyazo Dye Intermediate; 3-[(4-Acetamidophenyl)azo]-5-amino-6-{[4-({4-[(2,4-diaminophenyl)azo]phenyl}amino)-3-sulfophenyl]azo}-4-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict 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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility (in Water)	Partially soluble
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.