Intermediates

2-(2-Chlorophenyl)-4,5-diphenylimidazole

  • CAS No.1707-67-1
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 2-(2-Chlorophenyl)-4,5-diphenylimidazole intermediate for photoinitiator synthesis. Assay ≥98% with global supply and full documentation.

Request Bulk Pricing

Product Technical Details

Product Overview

2-(2-Chlorophenyl)-4,5-diphenylimidazole is a specialized organic intermediate primarily utilized in the synthesis of advanced photoinitiators, specifically Hexaarylbiimidazoles (HABI). This compound features a robust imidazole core substituted with chlorophenyl and diphenyl groups, providing exceptional thermal stability and reactivity profiles essential for high-performance polymerization processes. Our manufacturing facility ensures strict quality control to meet the demanding specifications of the UV curing and electronic materials industries.

Key Chemical Properties

The molecular structure of this imidazole derivative contributes to its low volatility and high melting point, making it suitable for processes requiring elevated temperatures. The presence of the chlorophenyl moiety enhances the electron-withdrawing characteristics, which is critical for the subsequent oxidation steps involved in photoinitiator formation. We maintain rigorous standards for molecular weight consistency and impurity profiles to guarantee downstream performance.

Technical Specifications

ParameterSpecification
CAS Number1707-67-1
Molecular FormulaC21H15ClN2
Molecular Weight330.81 g/mol
AppearanceOff-white crystal powder
Assay (Purity)≥98.0%
Melting Point194-197 °C
Loss on Drying≤1.0%
Residue on Ignition≤0.5%

Industrial Applications

This intermediate serves as a critical precursor in the production of Hexaarylbiimidazole photoinitiators, widely used in UV-curable coatings, printing inks, and printed circuit board (PCB) manufacturing. The resulting photoinitiators enable rapid curing under UV light exposure, offering superior adhesion and chemical resistance. Additionally, this compound is utilized in research and development for new polymer systems requiring precise photochemical activation.

Quality Assurance and Handling

Every batch undergoes comprehensive testing including HPLC analysis, melting point determination, and loss on drying assessments. We provide a Certificate of Analysis (COA) with each shipment to verify compliance with stated specifications. For optimal stability, the product should be stored in sealed containers within a cool, dry warehouse away from direct sunlight and moisture. Proper handling procedures ensure safety and maintain material integrity throughout the supply chain.