DiOC5(3) and DiOC6(3) are two of the most widely used carbocyanine dyes used for membrane potential measurements.    &lamba;Ex/&lamba;Em(MeOH) = 482/497 nm  Orange solid soluble in DMSO or DMF  Store at 4°C and protect from light  C27H33IN2O2  MW: 544.47  [53213-81-3 ]