DAB, pH 5.02018-01-05T10:11:32+00:00

DAB, pH 5.0

DAB (3,3-diaminobenzidine tetrahydrochloride), is used as a chromogen substrate in immunoblotting. DAB produces a brown color during the enzymatic degradation of H2O2 by horseradish peroxidase.

1 tablet dissolved in 40 ml of distilled water will give a solution with pH 5.0 +0.1 and a concentration of 0.25 mg/ml DAB buffered with 20 mM phosphate.

Standard package size is 50 tablets/vial.

  • Each tablet contains 10 mg of DAB
  • Dissolves in distilled water in less than 5 minutes


  • Stable and robust
  • Negligible batch-to-batch variation
  • Development time: 5-30 minutes


  • At least 2 years at 2-8° C
  • For long term storage DAB tablets should be kept at -20°C


All products are available as OEM components or under our own Kem-En-Tec Diagnostics A/S label.

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