3,3'-Diaminobenzidine (DAB) is an organic compound that is both chemically and thermodynamically stable. As its water-soluble tetrahydrochloride, DAB has been used in immunohistochemical staining of nucleic acids and proteins. Diaminobenzidine is oxidized by hydrogen peroxide in the presence of hemoglobin to give a dark-brown color. This is used to detect fingerprints in blood.
A nucleic acid stain as well as a peroxidase substrate, 3,3’-Diaminoabenzidine (DAB) is a reagent for selenium spectrophotometric determination that can also be utilized for staining proteins.
Used for spectrophotometric determination of selenium.
Research or further manufacturing use only, not for food or drug use.