PhenoVue™ ROS-490, Total Oxidative Stress Indicator is a cell permeable fluorescent reactive oxygen species indicator and is part of Revvity’s portfolio of cellular imaging reagents. PhenoVue ROS-490, Total Oxidative Stress Indicator exhibits green fluorescence and is validated for use in imaging microscopy and high-content screening applications. It exhibits a maximum excitation wavelength at 498 nm and a maximum emission wavelength of 517 nm.