Used in organic synthesis as a building block for pharmaceuticals and agrochemicals, particularly in Suzuki-Miyaura cross-coupling reactions to form biaryl compounds. Its boronic acid group enables carbon-carbon bond formation, while the ethylsulfinyl moiety acts as a polar, electron-withdrawing group that can influence reactivity and selectivity. Commonly employed in the development of bioactive molecules and functional materials where fine-tuned electronic and structural properties are required.