2-Amino-5-phenylpentanoic acid is primarily utilized in the field of medicinal chemistry and drug development. It serves as a key intermediate in the synthesis of various pharmaceutical compounds, particularly those targeting neurological and metabolic disorders. Its structure is often incorporated into peptides and small molecules designed to modulate enzyme activity or receptor function. Additionally, it is used in research to study amino acid metabolism and to develop potential treatments for conditions such as epilepsy, depression, and neurodegenerative diseases. Its phenyl group provides a hydrophobic moiety, making it valuable in designing compounds with specific binding properties or enhanced bioavailability.