Description

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, coupled with 6-amino-4-hydroxy-2-naphthalenesulfonic acid and diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine is a high-purity, complex organic dye intermediate essential for synthesizing specialized colorants. This compound is valued for its ability to impart specific, stable hues and functional properties in advanced materials. It is primarily required by manufacturers in the dye and pigment industries, as well as by research institutions developing novel optical or electronic materials.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance azo dyes, particularly for textiles, leather, and paper.
• Functional Pigment Production: Used in manufacturing pigments for inks, coatings, and plastics where specific color fastness and stability are required.
• Research & Development: Employed in academic and industrial R&D for creating new chromophores with tailored optical properties.
• Specialty Chemical Synthesis: Acts as a precursor for more complex chemical entities used in analytical reagents or niche industrial processes.
• Potential Electronic Applications: Investigated for use in organic electronics and photonic devices due to its conjugated molecular structure.

Basic Information

Item	Details
Product Name	2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, coupled with 6-amino-4-hydroxy-2-naphthalenesulfonic acid and diazotized 2-(4-aminophenyl)-1H-benzimidazol-5-amine
CAS No.	90431-97-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Azoic Coupling Component; Diazotized Azo Dye Intermediate; 2-(4-Aminophenyl)-1H-benzimidazol-5-amine, diazotized, coupled with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid and 6-amino-4-hydroxy-2-naphthalenesulfonic acid; Complex Azo Coupling Product; Dye Intermediate 90431-97-3; Azoic Component for Navy/Black Shades; Benzimidazole-based Azo Intermediate
EINECS	Contact for details

Quality Control

Every batch of this dye intermediate is produced under strict quality management protocols to ensure consistency and purity for your synthesis processes. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and identity confirmation. Our quality systems are designed to meet the rigorous demands of industrial-scale chemical manufacturing and advanced research applications.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 2.0%
Heavy Metals	Max. 20 ppm
Solubility Test	Soluble in alkaline aqueous solutions

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