Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of bioactive molecules due to its heterocyclic structure. It serves as a building block in cross-coupling reactions, such as Suzuki and Heck reactions, enabling the formation of carbon-carbon bonds for constructing complex organic molecules. Also employed in the preparation of fluorescent dyes and optoelectronic materials owing to the electron-withdrawing nature of the iodine atom and the stability of the benzothiazole ring. Its reactivity allows functionalization at the iodine site, facilitating incorporation into larger conjugated systems for use in organic semiconductors and sensors.