5-Cyano-3-pyridinyl boronic acid is widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is essential for forming carbon-carbon bonds, enabling the creation of complex organic molecules. The compound serves as a key intermediate in the synthesis of pharmaceuticals, agrochemicals, and advanced materials. Its boronic acid group acts as a reactive handle, facilitating the coupling with aryl or vinyl halides in the presence of a palladium catalyst. Additionally, its pyridine ring with a cyano substituent enhances its stability and reactivity, making it a valuable building block in medicinal chemistry for designing drug candidates. It is also employed in the development of sensors and functional materials due to its ability to interact with diols and other biologically relevant molecules.