Used primarily as a monomer in the production of specialty polymers, 4-Chloro-2-vinylpyridine enhances the properties of materials, particularly in the creation of ion-exchange resins. These resins are crucial in water purification processes, where they help remove impurities and heavy metals from water. Additionally, this chemical is utilized in the synthesis of copolymers that are applied in coatings and adhesives, providing improved durability and chemical resistance. Its role in the development of advanced materials for medical devices is also notable, where it contributes to the biocompatibility and functionality of the products.