This compound is primarily utilized in the field of cancer research, where it serves as a potent and selective inhibitor of P-TEFb (Positive Transcription Elongation Factor b). By targeting this specific protein complex, it plays a crucial role in regulating transcriptional elongation, particularly in the context of cancer cells. Researchers employ it to study the mechanisms of transcription control and to explore its potential in inhibiting the growth of certain cancer types, such as acute myeloid leukemia (AML). Its application extends to preclinical studies, where it helps in understanding the molecular pathways involved in cancer progression and in evaluating the efficacy of targeted therapies.