Used in peptide synthesis as a dipeptide building block, particularly in research focused on bioactive peptides. It serves as a fragment in developing compounds with potential neurological or hormonal activity due to the presence of tryptophan, which is often involved in receptor interactions. Commonly applied in pharmaceutical studies aiming to modulate serotonin pathways or design metabolic stability probes. Also utilized in structure-activity relationship (SAR) studies to optimize peptide-based drug candidates.