Used as a key intermediate in pharmaceutical synthesis, particularly in Suzuki-Miyaura cross-coupling reactions to construct biaryl systems found in active pharmaceutical ingredients. Its boronic ester group enables efficient carbon-carbon bond formation under mild conditions, making it valuable in drug discovery for developing kinase inhibitors and other heterocyclic compounds. The methylthio group can act as a directing group or be further modified to thioether, sulfoxide, or sulfone functionalities, adding versatility in late-stage functionalization. Commonly employed in the development of agrochemicals and medicinal chemistry research due to its stability and reactivity profile.