Description

4-Amino-3-[[4-[5-[(2,4-Diaminophenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-5-Hydroxy-6-(Phenylazo)-2,7-Naphthalenedisulfonic Acid is a complex, high-purity azo dye intermediate of significant industrial importance. This compound is valued for its precise molecular structure, which is critical for synthesizing specialized dyes and pigments with specific color properties and fastness. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries who require consistent, high-quality intermediates for advanced coloration applications. Our supply ensures reliable performance and batch-to-batch consistency for your production processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, polyazo direct dyes and reactive dyes for textiles.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific hue and stability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Analytical Chemistry: Can be utilized as a standard or reagent in analytical methods for dye identification and quantification.
• Functional Material Synthesis: Potential use in creating dyes for non-textile applications, such as in optical data storage or sensitizers.

Basic Information

Item	Detail
Product Name	4-Amino-3-[[4-[5-[(2,4-Diaminophenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-5-Hydroxy-6-(Phenylazo)-2,7-Naphthalenedisulfonic Acid
CAS No.	58370-70-0
Molecular Formula	C35H26N12O7S2
Molecular Weight	790.78 g/mol
Synonyms	Acid Black 234; C.I. 30336; 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4-[5-[(2,4-diaminophenyl)azo]-1H-benzimidazol-2-yl]phenyl]azo]-5-hydroxy-6-(phenylazo)-; C.I. Acid Black 234; Benzimidazolyl azo dye intermediate; Polyazo dye intermediate; Azo benzimidazole dye
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure chemical identity, purity, and performance consistency. Every batch is analyzed using modern analytical techniques including HPLC and spectroscopic methods. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment, supporting your quality assurance and regulatory compliance needs.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline water

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