Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure allows for selective functionalization, making it valuable in constructing complex drug candidates. Commonly employed in medicinal chemistry for building blocks in PROTACs (proteolysis-targeting chimeras) and targeted therapies. Also utilized in the preparation of fluorescent probes and labeled compounds for biochemical assays due to its phenolic and amine functionalities that support conjugation reactions.