This compound is primarily used in research settings to study cystic fibrosis and related conditions. It acts as a potent inhibitor of the cystic fibrosis transmembrane conductance regulator (CFTR) protein, which is crucial for chloride ion transport in epithelial cells. By blocking CFTR, it helps researchers understand the role of this protein in fluid secretion and its dysfunction in diseases like cystic fibrosis. Additionally, it is utilized in laboratory experiments to investigate the mechanisms of ion transport and to develop potential therapeutic strategies targeting CFTR-related disorders. Its application is largely confined to preclinical studies and not used in clinical or industrial contexts.