Used in organic synthesis as a boronic ester coupling partner in Suzuki-Miyaura cross-coupling reactions. It enables the formation of biaryl and heterobiaryl compounds, which are common structural motifs in pharmaceuticals and agrochemicals. Its benzo[b]thiophene moiety is valuable for constructing conjugated systems in materials science, including organic semiconductors and optoelectronic materials. The presence of the dioxaborolane group enhances stability and reactivity under palladium-catalyzed conditions, making it suitable for late-stage functionalization in drug discovery.