(4-(Pyridin-4-yl)phenyl)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. Its boronic acid group acts as a key reagent, enabling the coupling with aryl halides to create complex biaryl structures. Additionally, it is employed in the development of sensors and diagnostic tools due to its ability to interact with diols and other functional groups, making it useful in detecting sugars and other biomolecules. Its pyridine moiety further enhances its utility in coordination chemistry and catalysis.