Taq PCR Master Mix (2X, Red Dye): Taq PCR Master Mix (2X, blue dye) is a ready-to-use solution containing Taq DNA polymerase, dNTP, MgCl2, PCR buffer, PCR stabilizers, gel loading reagent and dye. PCR products can be loaded onto agarose gel directly. Optimized Taq PCR Master Mix (2X, blue dye) can amplify targets up to 5 kb in length from lambda DNA. Users only need to add a template, water and primers to set up a PCR reaction.The Master Mix provides a final concentration of 1.5 mM MgCl2 in the reaction mix. If a higher Mg2+ concentration is desired, please adjust Mg2+ concentration accordingly using 25 mM Mg2+ solution provided with the Master Mix.