Used as a key intermediate in the synthesis of various pharmaceuticals, particularly in the development of antiviral and antibacterial agents. Its structure supports the formation of bioactive molecules due to the presence of both amino and carboxylic functional groups, which allow for easy modification and coupling reactions. Commonly employed in the preparation of benzothiazole-based drug candidates that exhibit kinase inhibition, making it relevant in oncology research. Also utilized in the design of fluorescent probes and dyes, where the benzothiazole core contributes to light-emitting properties useful in imaging and sensor technologies. Its hydrochloride form enhances solubility and stability in aqueous reaction environments, improving yield in synthetic pathways.