Pyrazole-3-boronic acid hydrate is widely used 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 advanced materials. Its boronic acid group acts as a key functional moiety, facilitating the coupling with aryl or vinyl halides in the presence of a palladium catalyst. Additionally, it serves as a building block in the development of heterocyclic compounds, which are crucial in drug discovery and medicinal chemistry. Its hydrate form ensures stability and ease of handling in various synthetic applications.