Used in organic synthesis as a key intermediate in Suzuki-Miyaura cross-coupling reactions to construct biaryl compounds, especially in the development of pharmaceuticals and agrochemicals. Its boronate ester group enables efficient carbon-carbon bond formation under mild conditions. Commonly applied in the preparation of functional materials such as organic semiconductors and fluorescent dyes due to the electron-accepting nature of the benzothiazole core. Also utilized in medicinal chemistry for building complex heterocyclic systems targeting kinase inhibitors and bioactive molecules.