Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antitumor and antimicrobial agents. It serves as a building block in organic reactions where the bromine atom allows for further functionalization through cross-coupling reactions such as Suzuki or Heck reactions. Its structure is valuable in medicinal chemistry for modifying benzothiazole-based compounds to enhance biological activity. Also employed in the preparation of fluorescent dyes and optoelectronic materials due to the inherent electronic properties of the benzothiazole core.