Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) where a protected aromatic carboxylic acid functionality is required. Its structure allows for selective deprotection and further functionalization, making it valuable in multi-step organic synthesis. Commonly employed in the preparation of anti-inflammatory agents and kinase inhibitors due to its ability to serve as a building block for biaryl and heterocyclic systems. Also utilized in solid-phase peptide synthesis and medicinal chemistry research for modifying molecular scaffolds to enhance metabolic stability and binding affinity.