2-Chloropyridine-3-boronic acid is widely used as a building block in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is essential for forming carbon-carbon bonds, enabling the synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and materials. The compound's boronic acid group facilitates its role as a key intermediate in creating biaryl structures, which are common in drug development. Additionally, it is utilized in the preparation of heterocyclic compounds, which are significant in medicinal chemistry due to their biological activity. Its applications also extend to material science, where it contributes to the development of organic electronic materials and polymers.