Provided in a pre-mixed, ready to use form, this dye is used for loading DNA samples into gel electrophoresis wells. The blue/orange dye can be used to track migration during electrophoresis. To prevent frequent freeze/thaw cycles, the dye is provided in three 1mL aliquots. Each vial is tested and certified to be free of DNase activity. Note: Dye requires storage at -20°C.