?AMRESCOs Glycerol Gel Loading Dye is designed to optimize loading nucleic acids in acrylamide and agarose gels by imparting color to the sample to ensure efficient sample distribution into each well. Its blend of three tracking dyes make estimating sample migration simple and reliable: Dye #1 - A light blue dye that migrates at 4,000 base pairs in 1% agarose, Dye #2 - An indigo dye that migrates at about 600 base pairs in 1% agarose and Dye #3 - A magenta dye that migrates at 10 base pairs in 1% agarose. migrate independetly from the samples, allowing estimation of the migration of the nucleic acids. Contains 30% Glycerol.