Used as a selective inhibitor of Ca²⁺/calmodulin-dependent protein kinase II (CaMKII) in neuroscience research. Helps study the role of CaMKII in synaptic plasticity, memory formation, and neuronal signaling. Applied in cellular and molecular studies to block CaMKII activity, allowing researchers to investigate its involvement in long-term potentiation (LTP) and neurological disorders such as epilepsy, ischemia, and neurodegenerative diseases. Also utilized in experiments to dissect signaling pathways in cardiac and immune cells where CaMKII plays a regulatory role.