5X Protein Loading Buffer (Reducing) is supplied by HiMedia. It is the most commonly used sample buffer for Sodium Dodecyl Sulfate - Polyacrylamide Gel Electrophoresis (SDS-PAGE) of denatured proteins in the Laemmli SDS-PAGE system. Using bromophenol blue dye, SDS-PAGE Protein Loading Buffer is a ready-to-use 5X solution. It contains 10% SDS, 500Mm DTT, 50% Glycerol, 500mM Tris-HCL and 0.05% bromophenol blue dye. It can be used for SDS-PAGE protein loading of conventional proteins. It is especially formulated for protein sample preparation to be used in the Laemmli SDS-PAGE system. It is sufficient to prepare 15 mL protein samples. And the whole sample preparation process can be finished within 5 minutes. It is advisable to store this product at -20C.