SKA-111 is a selective calcium-activated potassium phannel (potassium phannel ) KCa3.1 activator that induces membrane hyperpolarization in porcine endothelial cells.SKA-111 binds to the interface between the CaM N-valve and the S4-S5 junction and ameliorates Bradykinin-induced dilation of coronary arteries in the isolated rat heart, which can be used for the study of cardiovascular diseases. study of cardiovascular diseases.