Used primarily in research to study enzyme inhibition and metabolic pathways, particularly those involving tryptophan metabolism. It serves as a competitive inhibitor for enzymes like tryptophan hydroxylase, helping to understand serotonin synthesis and regulation. Also employed in neuroscience studies to explore its effects on behavior and neurotransmitter systems. In cancer research, it is investigated for its potential to modulate tumor growth by interfering with amino acid metabolism. Additionally, it aids in the development of therapeutic agents targeting metabolic disorders.