Description

4,4'-(Vinylene)Bis[3-Sulphobenzenediazonium] Dichloride is a specialized diazonium salt derivative, a key intermediate in the synthesis of functional dyes and pigments. Its core value lies in its ability to act as a versatile coupling agent, enabling the formation of stable azo bonds critical for color development. This compound is essential for manufacturers in the dye and pigment, specialty chemical, and advanced materials industries seeking to produce high-performance colorants with specific optical and fastness properties.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial building block in the synthesis of complex, high-value azo colorants for textiles, inks, and plastics.
• Functional Dye Synthesis: Used in the production of specialized dyes for applications in electronics, such as liquid crystal displays (LCDs) and optical data storage.
• Photographic Chemicals: Acts as a light-sensitive component in certain photographic and photoresist formulations.
• Cross-linking Agent: Utilized in polymer chemistry to introduce reactive diazonium groups for surface modification or cross-linking reactions.
• Research & Development: Employed in academic and industrial R&D labs for developing novel chromophores and advanced organic materials.
• Bioconjugation & Labeling: Potential use in biochemical applications for tagging biomolecules due to its reactive diazonium functionality.

Basic Information

Product Name	4,4'-(Vinylene)Bis[3-Sulphobenzenediazonium] Dichloride
CAS No.	13954-62-6
Molecular Formula	C14H10Cl2N4O6S2
Molecular Weight	465.28 g/mol
Synonyms	4,4'-(Ethene-1,2-diyl)bis(3-sulfobenzene-1-diazonium) dichloride; 4,4'-Vinylenebis(3-sulfobenzenediazonium) dichloride; Bis[3-(diazonium)-4-sulfophenyl]ethylene dichloride; 3,3'-(1,2-Ethenediyl)bis[6-(diazonium)benzenesulfonate] dichloride; Diazonium Salt VB; VB Salt; Light-sensitive intermediate VB
EINECS	Contact for details

Quality Control

Our production of 4,4'-(Vinylene)Bis[3-Sulphobenzenediazonium] Dichloride adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for industrial synthesis. Each lot undergoes comprehensive analytical testing, including HPLC for purity, titration for assay, and spectroscopic identification. A detailed Certificate of Analysis (COA) documenting all specifications is provided with every shipment to support 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). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and opened only under controlled, low-humidity conditions to prevent decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Purity (HPLC)	≥ 90.0%
Water Content (KF)	≤ 5.0%
Solubility	Soluble in water, polar organic solvents

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