SANT-1 is primarily used in research settings for its ability to modulate the Hedgehog (Hh) signaling pathway, a critical pathway involved in embryonic development and tissue homeostasis. It acts as a potent inhibitor of Smoothened (SMO), a key protein in the Hh pathway. Due to this inhibitory effect, SANT-1 is widely applied in studies related to cancer biology, particularly in investigating tumor types where the Hh pathway is abnormally activated, such as basal cell carcinoma and medulloblastoma. Researchers use SANT-1 to probe the mechanisms of signal transduction in developmental biology and to evaluate potential therapeutic strategies for Hh-dependent cancers. Its selectivity and potency make it a valuable tool in high-throughput screening and structure-activity relationship (SAR) studies aimed at developing new anticancer agents. SANT-1 is not used clinically but remains important in preclinical research for validating targets and understanding pathway dynamics.