This dye is used as a loading dye for DNA/RNA samples and DNA markers in agarose gels. It contains Bromophenol Blue and Xylene cyanol as tracking dye during electrophoresis. The EDTA is included in the solution to protect sample from nuclease degradation. Compositioin: Ficoll: 15% Dye A: approx 4,000 bp in 1% agrose gel Dye B: approx 300 bp in 1% agrose gel DNase RNase: Not detected Stability 4 °C: 6 months Absorbance of Solution (dilution 1:100 with deionized water) at 525nm - 0.02-0.08, at 588-594nm - 0.1-0.4, at 635-641nm - 0.05-0.2