Radiant™ Green qPCR 2x qPCR Blue Mix, 100 Reactions, 1 x 1.0mL, Lo ROX. Optimized for qPCR applications that require lower ROX concentrations, this mix is perfect for accurate quantitative results in various gene expression and genetic analysis studies. With the 2x concentration, fewer reagents are needed, making this mix cost-effective while providing precise results.