jc-1

JC-1 (CBIC2) is a fluorescent lipophilic cyanine dye. JC-1 is used to measure mitochondrial membrane potential. When the mitochondrial membrane potential is high, JC-1 aggregates into polymers within the matrix, emitting red fluorescence (λex=585 nm, λem=590 nm). When the mitochondrial membrane potential is low, JC-1 fails to aggregate within the mitochondrial matrix and exists as monomers, emitting green fluorescence (λex=510 nm, λem=527 nm).

JC-10 is a potent inhibitor of metalloproteinases and is often used as a probe.