(4-Methylquinolin-3-yl)boronic acid is primarily used in organic synthesis, particularly in cross-coupling reactions such as the Suzuki-Miyaura reaction. This reaction is widely employed in the pharmaceutical industry for the construction of carbon-carbon bonds, enabling the synthesis of complex molecules, including drug candidates. The compound serves as a versatile building block for the preparation of quinoline derivatives, which are often explored for their biological activities. Additionally, it is utilized in materials science for the development of organic electronic materials and sensors, where boronic acid groups can interact with diols and other functional groups, enabling applications in molecular recognition and detection. Its stability and reactivity make it a valuable reagent in both academic research and industrial processes.