Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antitubercular and antimicrobial agents. It serves as a building block for pyridine-based compounds that exhibit biological activity. Also employed in the preparation of dyes and functional materials due to its aromatic and amino-hydroxy structure. Its hydrochloride form enhances solubility and stability in various reaction conditions, making it suitable for use in aqueous or polar organic media during chemical synthesis.