Used in pharmaceutical research as a key intermediate in the synthesis of serotonin receptor modulators and neuroactive compounds. Its structural similarity to tryptophan makes it valuable in studying neurotransmitter pathways and developing drugs targeting mood disorders. Also explored in peptide-based drug design for its ability to enhance metabolic stability and receptor selectivity. Investigated for potential applications in treating neurological conditions such as depression, anxiety, and sleep disorders due to its role in mimicking natural indoleamine signaling molecules.