WYE-687 is a potent and selective ATP-competitive mTOR inhibitor with an IC50 of 7 nM. It effectively suppresses mTORC1 and mTORC2 signaling by inhibiting pS6K(T389) and pAKT(S473), respectively, while showing high selectivity over PI3K isoforms. This inhibitor is a valuable tool for studying mTOR-dependent pathways in cancer and metabolic disease research, both in vitro and in vivo.