Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of benzothiazole-based drugs with antimicrobial, antiviral, and anticancer activities. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for designing bioactive molecules. Also employed in the preparation of fluorescent dyes and optoelectronic materials due to the inherent electronic properties of the benzothiazole core. Commonly utilized in research settings for generating compound libraries in drug discovery programs.