Torin 2 is primarily used in biomedical research as a potent and selective inhibitor of mTOR (mechanistic target of rapamycin), a key protein kinase involved in cell growth, proliferation, and survival. It effectively suppresses both mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2), making it a valuable tool for studying signaling pathways related to cancer, metabolism, and aging. Due to its high selectivity and improved pharmacokinetic properties over earlier inhibitors, Torin 2 is widely used in preclinical studies to investigate tumor suppression, autophagy induction, and cellular response to stress. It also serves as a reference compound in drug development targeting mTOR-driven diseases, including various cancers and metabolic disorders.