Used in biochemical research as a reagent for studying enzyme activity and protein interactions, particularly in the context of post-translational modifications. It serves as a substrate or inhibitor in assays to investigate the function of specific enzymes, such as proteases or acetyltransferases. Applied in the development of diagnostic tools for detecting enzyme-related disorders. Also utilized in the synthesis of peptide derivatives for pharmaceutical research, aiding in the exploration of new therapeutic compounds. Its nitro group makes it useful in photoaffinity labeling studies to probe protein-ligand interactions.