Intermediates

2-(Chloro(4-chlorophenyl)methyl)pyridine

  • CAS No.142404-69-1
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 2-(Chloro(4-chlorophenyl)methyl)pyridine (CAS 142404-69-1), a key pharmaceutical intermediate for Bepotastine besilate synthesis.

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Product Technical Details

Product Overview

2-(Chloro(4-chlorophenyl)methyl)pyridine is a high-value aromatic heterocyclic compound widely employed as a critical building block in the synthesis of advanced pharmaceutical actives. With a molecular formula of C12H9Cl2N and a molecular weight of 238.11 g/mol, this dichlorinated pyridine derivative exhibits excellent reactivity in nucleophilic substitution and cross-coupling reactions, making it indispensable in modern medicinal chemistry workflows.

Specifications

Molecular FormulaC12H9Cl2N
Molecular Weight238.113 g/mol
Density1.279 g/cm³
Boiling Point338.7°C at 760 mmHg
Flash Point189.1°C
Refractive Index1.597
AppearanceWhite powder
Purity≥99%

Industrial Applications

This compound serves primarily as a synthetic intermediate in the production of Bepotastine besilate (CAS 190786-44-8), a second-generation antihistamine used in ophthalmic and oral formulations for allergic conditions. Its dual chlorine functionality enables selective derivatization, facilitating efficient construction of complex molecular architectures under controlled reaction conditions.

  • Enables streamlined synthesis of histamine H1-receptor antagonists
  • Compatible with standard organometallic and palladium-catalyzed coupling protocols
  • Supplied in pharma-grade purity to meet stringent regulatory requirements

Stored in a cool, dry, and tightly sealed container away from moisture, heat, and direct light. Standard packaging is 25 kg per fiber drum, with custom options available upon request.