SIGMAFAST^™ DAB with Metal Enhancer 

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SIGMA FAST^™ DAB (3,3'-Diaminobenzidine tetrahydrochloride) with Metal Enhancer Tablets have been developed for use in immunohistology as a precipitating substrate for the localization of peroxidase activity. The DAB reaction is enhanced by the addition of CoCl₂ and produces a more intense stain which is resistant to alcohol.

SIGMA FAST^™ DAB with Metal Enhancer Tablets require no additional buffers or steps to prepare an active substrate solution for detection of peroxidase activity. Commom use is in immunohistology as a precipitating substrate.

Each tablet set dissolved in 5 mL deionized water yields a ready-to-use buffered solution containing DAB with a metal enhancer.

SIGMAFAST is a trademark of Sigma-Aldrich Biotechnology LP and Sigma-Aldrich Co.

tablet

−20°C