Tetramethylrhodamine, methyl ester (TMRM)(ab275547)

MW 436.93 g/mol, Purity >95%. Fluorescent, cell-permeant cationic dye for measuring mitochondrial membrane potential. Accumulates in healthy, negatively charged mitochondria. Exhibits re-orange fluorscence (Em = 573 nm). Minimal fluorescence observed when mitochondrial membrane potential collapses. Used to monitor cell health and viability. Stained cells can be analysed via flow cytometry, fluorescence microscopy or fluorescence plate reader techniques. .