m-Tolylboronic 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 synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and advanced materials. It serves as a key intermediate in the production of various biaryl compounds, which are crucial in drug development and material science. Additionally, it is employed in the preparation of liquid crystals and organic electronic materials due to its ability to introduce aryl groups into target molecules. Its versatility and stability make it a valuable reagent in modern synthetic chemistry.