CFTR inhibitor 172 is primarily used in research settings to study the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein. It is a valuable tool for investigating the mechanisms of CFTR-mediated chloride transport and its role in various physiological and pathological processes. Researchers utilize this inhibitor to mimic cystic fibrosis conditions in laboratory models, helping to understand the disease better and develop potential therapeutic strategies. Additionally, it is employed in studies exploring the involvement of CFTR in other conditions, such as secretory diarrhea and polycystic kidney disease, providing insights into its broader biological significance.