Description

7-Naphthalenedisulfonic Acid, 3,3'-[[4,4'-Diarsono(1,1'-Biphenyl)-3,3'-Diyl]Bis(Azo)] Bis(4,5-Di2 is a specialized azo dye intermediate characterized by its complex aromatic structure containing sulfonic acid and arsono functional groups. This compound is valued for its ability to impart specific chromophoric properties and act as a chelating agent in advanced material synthesis. It is primarily utilized by manufacturers in the dye and pigment industries, as well as in research institutions focused on developing novel functional materials and chemical sensors.

Application

• Dye and Pigment Manufacturing: Serves as a critical precursor for synthesizing complex, high-performance azo dyes and pigments, particularly those requiring specific shades and lightfastness.
• Functional Material Synthesis: Used in the research and development of advanced materials, such as metal-organic frameworks (MOFs) or coordination polymers, due to its chelating arsono groups.
• Analytical Chemistry Reagent: Acts as a specialized reagent or a chromogenic agent in analytical methods for metal ion detection and quantification.
• Chemical Sensor Development: Investigated for use in the fabrication of chemical sensors where its structural properties can be leveraged for selective binding.
• Research & Development: Employed in academic and industrial R&D for exploring new synthetic pathways and novel compounds with unique optical or electronic properties.

Basic Information

Item	Detail
Product Name	7-Naphthalenedisulfonic Acid, 3,3'-[[4,4'-Diarsono(1,1'-Biphenyl)-3,3'-Diyl]Bis(Azo)] Bis(4,5-Di2
CAS No.	3861-75-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3,3'-[[4,4'-Diarsono(1,1'-biphenyl)-3,3'-diyl]bis(azo)]bis[4,5-dihydroxy-7-naphthalenesulfonic acid]; C.I. 30235; Direct Blue 2B; Pontamine Blue 2B; Azo Arsenic Blue; 3861-75-4; 7-Naphthalenedisulfonic acid derivative azo dye
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is controlled against established specifications for identity, purity, and related substances. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

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	≤ 20 ppm
Arsenic Content	Confirmatory test

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