(2,4-Diethoxyphenyl)boronic acid is primarily used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is widely employed in the pharmaceutical and materials science industries to form carbon-carbon bonds, enabling the synthesis of complex organic molecules. The compound serves as a key building block for creating biaryl structures, which are common in many drugs, agrochemicals, and organic electronic materials. Its boronic acid group facilitates the coupling with aryl halides or pseudohalides in the presence of a palladium catalyst, making it valuable for constructing diverse molecular architectures. Additionally, it may find applications in the development of sensors or probes due to its ability to interact with diols and other functional groups.