Iron, the most abundant transition metal in our bodies, is involved in a number of biologically important processes such as respiration, oxygen transport, and energy production in collaboration with oxygen. In living cells, iron exists mainly as ferrous (Fe2+) and ferric (Fe3+) ionic forms. As a major contributor to oxidative damage of cells, Fe2+ is implicated in serious diseases such as cancers and neurodegenerative disorders, because of its ability to produce harmful reactive oxygen species via contact with oxygen, superoxide, and hydrogen peroxide (H2O2).BioTracker far-red labile Fe2+ dye is a fluorescent probe that specifically detects labile iron (II) ions (Fe2+). This probe is designed to selectively react with only Fe2+ separately from other metal ions and irreversibly turns into a far-red fluorescent substance. It mainly localizes inside endoplasmic reticulum (ER) and/or golgi bodies. It can also be used with a flow cytometer equipped with a red laser. FerroFarRed shows almost no cytotoxicity at concentrations up to 100 muM (~20 times that of generally used concentrations).This product is same as FerroFarRedTM (GC903-01) from Goryo Chemical, Inc.Spectral Properties:Absorbance (max): 646nmEmission (max): 662nm (Far-red)Research Category:Live Cell Dye