Lys-Tyr-Lys acetate salt is primarily utilized in biochemical and pharmaceutical research due to its peptide structure. It serves as a valuable tool in studies involving peptide-protein interactions, helping to understand molecular binding mechanisms. This compound is also employed in the development of peptide-based therapeutics, particularly in areas targeting specific cellular processes or diseases. Additionally, it finds application in the synthesis of complex peptides and as a reference standard in analytical chemistry for peptide identification and quantification. Its stability and solubility make it suitable for use in various experimental setups, including in vitro assays and drug delivery system studies.