NS 11021 is primarily used in research settings to study its effects on ion channels, particularly potassium channels. It is often employed in electrophysiological studies to understand the modulation of membrane potential and cellular excitability. Researchers utilize NS 11021 to investigate its potential therapeutic applications in conditions related to abnormal ion channel function, such as cardiovascular diseases, neurological disorders, and certain types of arrhythmias. Its ability to activate specific potassium channels makes it a valuable tool for exploring new treatments for diseases where channel dysfunction plays a critical role. Additionally, NS 11021 is used in preclinical studies to assess its efficacy and safety profile, contributing to the development of novel pharmacological agents.