Used as a potent inhibitor in biochemical research, particularly targeting histone deacetylases (HDACs), which play a key role in gene expression regulation. Its structure allows selective interaction with enzyme active sites, making it valuable in studying cancer cell proliferation and apoptosis. Commonly applied in in vitro assays to evaluate antitumor activity and to develop novel therapeutics for oncology. Also utilized in structure-activity relationship (SAR) studies to optimize pharmacokinetic properties of HDAC inhibitor candidates.