IPG-4 AM is a membrane-permeable fluorescent potassium indicator that has been used to detect intracellular potassium.1 It binds to potassium (Kd = 7 mM) and displays excitation/emission maxima of 525/545 nm, respectively. IPG-4 AM is also available in a cell-impermeable form .
1.Rana, P.S., Gibbons, B.A., Vereninov, A.A., et al.Calibration and characterization of intracellular Asante Potassium Green probes, APG-2 and APG-4Anal. Biochem.5678-13(2019)
















