Used in the synthesis of pharmaceutical intermediates, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure supports the formation of hydrogen bonds and π-π interactions, making it valuable in drug design for targeting specific enzymes and receptors. Also employed in research settings for the preparation of fluorescent probes and dyes due to its electron-rich aromatic system. The hydrochloride salt form enhances solubility and stability, facilitating handling in aqueous and polar organic solvents during synthetic processes.