Used primarily as a key intermediate in the synthesis of fluorescent probes and imaging agents, especially in biomedical research. Its iodo-naphthalene core enables conjugation through coupling reactions, making it valuable in developing tracers for cellular targeting. The sulfonyl diazepane moiety enhances solubility and binding specificity, allowing use in receptor-binding studies and diagnostic tool development. Also employed in radiolabeling applications due to the presence of iodine, facilitating SPECT imaging and related techniques.