Stable DAB is a stable, pre-diluted chromogen system designed to clearly localize tissue, DNA, mRNA, and antigens in in situ hybridization and immunoperoxidase procedures. Stable DAB is a ready-to-use reagent containing the correct amounts of diaminobenzidine and hydrogen peroxide. Stable DAB does not fade, creating a permanent record of results under a standard coverslip. It is color coded red for easy user identification.