Description_x000D_ General description_x000D_ Xylene cyanol is often used as a tracking dye during agarose or polyacrylamide gel electrophoresis. It has a slight negative charge and will migrate the same direction as DNA, allowing the user to monitor the progress of molecules moving through the gel. The rate of migration varies with gel composition._x000D_ Application_x000D_ Xylene Cyanol FF is used as a:_x000D_ • histological stain and as tracker dye in DNA sequencing and electrophoresis_x000D_ • gel-loading dye_x000D_ • formamide RNA loading dye_x000D_ • tracking dye in native polyacrylamide gel electrophoresis (PAGE) loading buffer_x000D_ Packaging_x000D_ 10 g in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Xylene Cyanol FF acts as nucleic acid stain._x000D_ Reconstitution_x000D_ A 6x Gel Loading Buffer can be made using standard recipes, including 0.05% xylene cyanol.