2-Amino-2-(1H-indol-5-yl)acetic acid is primarily used in the field of medicinal chemistry and drug development. It serves as a key intermediate in the synthesis of various biologically active compounds, particularly those targeting neurological and psychiatric disorders. Its indole structure makes it valuable for creating molecules that interact with serotonin receptors, which are crucial in treating conditions like depression, anxiety, and migraines. Additionally, it is utilized in research to develop novel inhibitors for enzymes involved in inflammation and cancer progression. Its versatility also extends to the study of peptide mimetics, where it aids in designing compounds that mimic natural peptides for therapeutic purposes.