Used primarily as an intermediate in the synthesis of pharmaceuticals, especially in the development of bioactive molecules with antimicrobial, antifungal, and anti-inflammatory properties. Its structure enables functionalization for use in agrochemicals, particularly in pesticides and herbicides due to the presence of reactive chloromethyl and trifluoromethyl groups. Also employed in the preparation of fluorescent dyes and optical brighteners, where the benzo[d]thiazole core contributes to light absorption and emission characteristics. Common in research settings for constructing complex heterocyclic systems.