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 FerroOrange Live Cell Dye is an orange fluorescent probe that specifically detects labile iron (II) ions (Fe2+) only. The intensity of fluorescence does not increase in the presence of iron (III) ions (Fe3+) or bivalent metal ions other than iron. It also does not react to chelated iron in ferritin and other substances. FerroOrange is suitable for live-cell imaging because it is highly cell-permeable and has low cell toxicity.Spectral Properties:Absorbance (max): 542 nmEmission (max): 572 nmResearch Category:Live Cell Dye