Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of bioactive molecules due to the presence of reactive halogen groups. The chlorine and iodine substituents allow for selective cross-coupling reactions, making it valuable in medicinal chemistry for building complex heterocyclic systems. It is also employed in the preparation of fluorescent dyes and optoelectronic materials, where the benzo[d]thiazole core contributes to electron-transport properties. Its reactivity supports use in Suzuki, Stille, and Ullmann coupling reactions for creating carbon-heteroatom bonds in advanced organic synthesis.