Used in cancer research to block the activity of the BRD4 protein, which plays a key role in gene expression related to tumor growth. Shows potential in treating leukemia, lymphoma, and solid tumors by suppressing oncogenes like MYC. Also employed as a tool compound in epigenetic studies to understand chromatin regulation and transcriptional control. Exhibits anti-inflammatory effects in cellular models, suggesting possible applications in inflammatory diseases. Currently primarily for laboratory use, not approved for clinical therapy.