Description

4-Amino-3-[[4-[[[4-[(2,4-Diaminophenyl)Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]-5-Hydroxy-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, polyazo dye intermediate of significant commercial importance. This compound is valued for its ability to impart deep, stable colors and is a critical building block in the synthesis of specialized dyes and pigments. It is primarily sought by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

This advanced dye intermediate is engineered for high-value applications where color fastness and chemical stability are paramount.

• Textile Dyeing: A key precursor for synthesizing reactive and direct dyes for cotton, wool, and nylon, offering excellent wash and light fastness.
• Ink Manufacturing: Used in the production of pigments for high-quality printing inks, including inks for packaging and security applications.
• Specialty Coatings: Employed in creating colored coatings and paints that require specific durability and chemical resistance.
• Leather Coloring: Serves as an intermediate for dyes used in the leather tanning and finishing industry.
• Paper Coloring: Used in the manufacture of dyes for specialty and high-grade paper products.
• Research & Development: Acts as a standard or building block in organic synthesis and color chemistry research within industrial and academic laboratories.

Basic Information

Item	Details
Product Name	4-Amino-3-[[4-[[[4-[(2,4-Diaminophenyl)Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]-5-Hydroxy-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	72245-56-8
Molecular Formula	C41H28N10O9S2·xNa
Molecular Weight	Contact for details
Synonyms	Acid Black 210; C.I. 300310; Sodium 4-amino-3-{[4-({[4-({2,4-diaminophenyl}diazenyl)phenyl]carbamoyl})phenyl]diazenyl}-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulphonate; 4-Amino-3-{[4-({[4-({2,4-diaminophenyl}diazenyl)phenyl]carbamoyl})phenyl]diazenyl}-5-hydroxy-6-(phenyldiazenyl)naphthalene-2,7-disulphonic acid sodium salt; Polyazo dye intermediate 72245-56-8
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 purity for your synthesis processes. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content	Contact for details
Heavy Metals	< 20 ppm

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