Description

Disodium 3,3'-[(3,3'-Dichloro[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis(4-Aminonaphthalene-1-Sulphonate) is a high-purity, disazo-based chemical intermediate of significant industrial importance. Its value lies in its precise molecular structure, which serves as a critical building block for synthesizing specialized dyes and pigments. This compound is essential for manufacturers and R&D laboratories in the colorant, specialty chemical, and advanced materials sectors seeking consistent quality and reliable supply for their formulations.

Application

This specialized disazo compound is a versatile intermediate with key applications in several high-value industries:

• Primary Intermediate for Dye Synthesis: Serves as a crucial precursor in the manufacture of high-performance disazo dyes and pigments, particularly for demanding applications.
• Specialty Colorants Production: Used in creating colorants for plastics, inks, and coatings that require specific chromatic properties and stability.
• Research & Development: A valuable reagent in chemical R&D for developing novel chromophores and functional materials with azo-based backbones.
• Analytical Chemistry: Can be employed as a standard or reagent in analytical methods for dye characterization and quality control.

Basic Information

Product Name	Disodium 3,3'-[(3,3'-Dichloro[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis(4-Aminonaphthalene-1-Sulphonate)
CAS No.	6470-31-1
Molecular Formula	C32H18Cl2N6Na2O6S2
Molecular Weight	747.53 g/mol
Synonyms	Direct Blue 2B (Intermediate); C.I. 22610 Intermediate; 3,3'-[(3,3'-Dichloro-4,4'-biphenylylene)bis(azo)]bis[4-amino-1-naphthalenesulfonic acid], disodium salt; Disodium 4-amino-3-[[4'-[(4-amino-1-sulfo-2-naphthyl)azo]-3,3'-dichloro[1,1'-biphenyl]-4-yl]azo]-1-naphthalenesulfonate; Direct Blue 2B Diazo Component; 6470-31-1; Azo dye intermediate DB-2B
EINECS	Contact for details

Quality Control

Our production of Disodium 3,3'-[(3,3'-Dichloro[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis(4-Aminonaphthalene-1-Sulphonate) adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial and research applications. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance processes.

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). This material is light-sensitive and should be handled and stored accordingly to maintain stability.

Specification

Item	Specification
Appearance	Dark brown to purple powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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