(2-Ethylpyridin-3-yl)boronic acid is widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is essential for forming carbon-carbon bonds, making it valuable in the production of pharmaceuticals, agrochemicals, and advanced materials. The compound acts as a key intermediate in the synthesis of complex molecules, including drug candidates and bioactive compounds. Its boronic acid group facilitates efficient coupling with aryl or vinyl halides, enabling the creation of diverse chemical structures. Additionally, it is employed in the development of sensors and catalysts due to its ability to interact with various organic and inorganic substrates.