Used in research settings as a potent and selective inhibitor of protein-protein interactions involving the bromodomain and extra-terminal (BET) family of proteins. It is primarily employed to study epigenetic regulation in cancer cells, showing promise in suppressing the growth of tumor cells in hematological malignancies. Its high selectivity makes it a valuable tool for probing BET-dependent transcriptional pathways and evaluating therapeutic strategies in oncology and inflammatory diseases.