Used in biochemical research as an inhibitor of histone deacetylase (HDAC) enzymes, which play a key role in regulating gene expression, particularly in the development of anticancer drugs by inducing apoptosis in cancer cells. Commonly utilized in in vitro studies to investigate the functions of HDAC in various cellular processes. Serves as a starting material in the synthesis of other bioactive compounds requiring iodine for radiolabeling, making it valuable in medical imaging and tracer applications. Also employed as an intermediate in organic synthesis for pharmaceuticals and explored in medicinal chemistry for anticancer and antimicrobial drug development.