Used as a key intermediate in the synthesis of pharmaceuticals and bioactive molecules, particularly in peptide chemistry and drug development. The BOC-protected amine group allows for controlled deprotection during stepwise synthesis, making it valuable in solid-phase and solution-phase peptide coupling. Its carboxylic acid functionality enables attachment to other molecular scaffolds through amide or ester bond formation. Commonly employed in the preparation of protease inhibitors, receptor agonists, and targeted therapeutics where precise functional group manipulation is required. Also utilized in the development of labeled compounds for biochemical assays due to its stability and selective reactivity.