SR-717 free acid is primarily utilized in the field of immunology and cancer research. It functions as a stimulator of interferon genes (STING) agonist, which plays a crucial role in activating the innate immune response. This activation is essential for the body's defense mechanisms against viral infections and cancer. In therapeutic applications, SR-717 free acid is explored for its potential to enhance the immune system's ability to recognize and destroy tumor cells. It is being studied in preclinical and clinical trials to evaluate its efficacy in treating various cancers, particularly those that are resistant to conventional therapies. Additionally, its role in boosting immune responses makes it a candidate for use in vaccine adjuvants, potentially improving the effectiveness of vaccines against infectious diseases.