Used in peptide synthesis and bioconjugation processes, this reagent enables the introduction of a Boc-protected aminobenzoic acid moiety into molecules. Its NHS ester group reacts efficiently with primary amines under mild conditions, forming stable amide bonds. This makes it valuable for modifying proteins, labeling biomolecules, or constructing complex peptide architectures where orthogonal protection strategies are required. The Boc group provides acid-labile protection, allowing for selective deprotection without affecting other functional groups. Commonly employed in solid-phase and solution-phase synthesis, it supports the development of pharmaceuticals, diagnostics, and bioconjugates.