Used in pharmaceutical research as a key intermediate in the synthesis of tryptophan-based compounds, particularly those targeting neurological and psychiatric disorders. Shows potential in the development of serotonin and melatonin analogs due to structural similarity to indole derivatives. Also employed in studies related to enzyme inhibition, especially in glycosylation pathways and metabolic regulation. Its chlorinated indole moiety enhances binding affinity in receptor-ligand studies, making it valuable in drug design for central nervous system therapies.