VU591 is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM[1]. IC50: 0.24 μM (ROMK)[1].
[1]. Bhave G, et al. Development of a selective small-molecule inhibitor of Kir1.1, the renal outer medullary potassium channel. Mol Pharmacol. 2011 Jan;79(1):42-50.
















