PKmem 555 is a bright, non-phototoxic & non-toxic plasma membrane probe based on the PKmem dyes. PKmem 555 labels the plasma membrane in live cells with very high specificity. The unique and unmatched feature of PKmem 555 is its extremely low phototoxicity, due to the presence of the intramolecular triplet quencher cyclooctatetraene (COT) group.
