Description

2,7-Naphthalenedisulfonic Acid, 4-Amino-6-4-4-(2,4-Diaminophenyl)Azophenylaminosulfonylphenylazo-5-Hydroxy-3-(4-Nitrophenyl)Azo- is a complex, high-purity azo dye intermediate essential for synthesizing specialized colorants. Its intricate molecular structure provides exceptional chromophoric properties and binding affinity, making it a critical component for creating vivid and durable dyes. This compound is primarily needed by manufacturers in the textile, ink, and specialty polymer industries seeking to develop advanced coloring solutions with specific performance characteristics.

Application

• Primary Intermediate for Azo Dyes: Key building block for synthesizing high-performance, complex azo dyes used in textile coloration.
• Specialty Ink Manufacturing: Used in the production of inks for security printing, high-resolution imaging, and specialty packaging.
• Functional Polymer Colorants: Imparts color to engineering plastics, films, and fibers where stability and compatibility are paramount.
• Research & Development: Serves as a crucial reagent in chemical research for developing novel chromophores and studying dye chemistry.
• Analytical Chemistry: Can be utilized as a staining agent or a complexometric indicator in specific analytical procedures.

Basic Information

Item	Detail
Product Name	2,7-Naphthalenedisulfonic Acid, 4-Amino-6-4-4-(2,4-Diaminophenyl)Azophenylaminosulfonylphenylazo-5-Hydroxy-3-(4-Nitrophenyl)Azo-
CAS No.	72089-20-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Acid Black 234; 4-Amino-6-[4-[4-(2,4-diaminophenyl)azo]phenylsulfonylphenyl]azo-5-hydroxy-3-(4-nitrophenyl)azo-2,7-naphthalenedisulfonic acid; Acid Black 234; Azo Black 234; 2,7-Naphthalenedisulfonic acid, 4-amino-6-[4-[4-[(2,4-diaminophenyl)azo]phenyl]sulfonylphenyl]azo-5-hydroxy-3-(4-nitrophenyl)azo-; Black 234
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC and spectrophotometric analysis, to ensure consistent purity and chemical identity. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support customized quality standards to meet specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled 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 stability and performance.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 2.0%
Ash Content	Max. 1.0%
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.