Primarily used in biochemical research as a calmodulin antagonist, similar to naphthalenesulfonamide derivatives like W-7. It inhibits calmodulin-dependent enzymes, facilitating studies on calcium signaling pathways, cellular responses to calcium ions, and regulation of processes such as enzyme activation, muscle contraction, and cytoskeletal dynamics. Additionally, it has been explored in pharmacological research for potential applications in conditions involving dysregulated calcium signaling, including hypertension, smooth muscle disorders, and certain cancers. In laboratory settings, it aids in investigating inhibitor mechanisms and calmodulin-mediated physiological processes.