Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where protection of amine groups is required during multi-step reactions. Its Boc-protected amine group allows selective reactivity, making it valuable in peptide synthesis and the production of complex organic molecules. Commonly employed in the preparation of dyes, agrochemicals, and specialty polymers due to its stable carboxylic acid functionality and compatibility with various coupling reactions.