Frequently Asked Questions Live Chat and Frequently Asked Questions are available for this Product. Application Anti-fade reagent added to the mounting medium in fluorescence microscopy to retard photobleaching of fluorescein and other fluorescent dyes. Biochem/physiol Actions Electron Donor. Reduces cytochrome c. Caution Darkens in storage. 包装 1 kg in glass bottle 50, 100, 250 g in glass bottle