Used in solid-phase peptide synthesis as a protected bifunctional building block. The Boc and Fmoc groups allow for orthogonal protection strategies, enabling selective deprotection and stepwise assembly of complex peptides. The aromatic core with two amine handles is useful for introducing constrained or substituted benzene motifs into peptide backbones, often applied in the development of peptidomimetics and bioactive molecule synthesis. Its structure supports the creation of branched peptides or side-chain modifications in pharmaceutical research.