Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of targeted cancer therapies. Its structure supports conjugation with other bioactive molecules, making it valuable in creating prodrugs and antibody-drug conjugates (ADCs). Also employed in the design of fluorescent probes for studying cellular processes due to its ability to enhance solubility and binding specificity. Shows potential in medicinal chemistry for improving pharmacokinetic properties of drug candidates.