HiLyte™ Fluor 488 amine is a carbonyl-reactive fluorescent labeling dye. Fluorescence of HiLyte™ Fluor 488 fluorophore is independent of pH from 4 to 10. This pH insensitivity is a major improvement over fluorescein, which emits its maximum fluorescence only above pH 10. Extinction Coefficient (M-1cm-1): 70,000; Fluorescence quantum yield: 0.91; Fluorescence Life Time (ns): 4.1
Molecular Mass/ Weight
Storage & stability
DMF or DMSO: Prepare 10 mg/ml dye stock solution in high quality anhydrous DMSO. Completely dissolve all dye content by vortexing. Dye solution should be prepared fresh, immediately before an experiment. Longterm storage in solution form may reduce dye activity. Any solution containing the dye should be protected from light.