How comparable is CoralLoad gel loading dye contained in various QIAGEN PCR Kits to Sigma Red?
FAQ ID -1644

CoralLoad gel tracking dye contained in Taq, HotStarTaq, TopTaq DNA Polymerase and TopTaq Master Mix Kits separates into 2 fragment-size dependent colors (orange and red) when loaded onto an agarose gel. Sigma Red buffer only has one color which is harder to visualize.