Used primarily as a selective antagonist of the calcium-sensing receptor (CaSR), this compound is valuable in research settings for studying calcium homeostasis and parathyroid function. It helps modulate CaSR activity in cellular assays, making it a useful tool for investigating disorders related to calcium metabolism, such as hyperparathyroidism and certain bone diseases. Its selectivity allows researchers to dissect the receptor's role in signaling pathways without significant off-target effects. Additionally, it has been employed in studies exploring the role of CaSR in cancer cell proliferation and cardiovascular function.