Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research targeting enzyme inhibitors and receptor modulators. Its structure supports conjugation with biomolecules for assay development and labeling. Commonly employed in fluorescence-based applications due to the nitrobenzothiazole moiety, enabling detection in cellular imaging and diagnostic tools. Also utilized in the development of protease inhibitors and antimicrobial agents. Suitable for solid-phase and solution-phase peptide synthesis where protected functional groups are required.