Purity 98%. BAY-876 is a potent and Selective GLUT1 Inhibitor. BAY-876 showed good metabolic stability in vitro and high oral bioavailability in vivo. GLUT1 overexpression has been reported in many types of human Ys, including those of brain, 6 breast, colon, kidney, lung, ovary, and prostate, and is correlated with advanced Y stages and poor clinical outcomes.