BAY-876 is an orally active and selective glucose transporter 1 (GLUT1) inhibitor with an IC50 of 2 nM. BAY-876 is >130-fold more selective for GLUT1 than GLUT2, GLUT3, and GLUT4[1]. BAY-876 is also a potent blocker of glycolytic metabolism and ovarian cancer growth[2].