Used primarily in biomedical research, this compound serves as a selective inhibitor of calcium/calmodulin-dependent protein kinase II (CaMKII). It is widely applied in studies related to cellular signaling pathways, particularly in the investigation of cardiac function, neuronal activity, and synaptic plasticity. Researchers use it to probe the role of CaMKII in processes such as arrhythmias, heart failure, and memory formation. Due to its ability to block CaMKII activation, it helps in understanding disease mechanisms involving abnormal kinase activity. It is also employed in in vitro models to assess ion channel regulation and electrophysiological behavior in excitable cells.