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ImmPACT NovaRED® Substrate Kit, Peroxidase (HRP) (SK-4805)



The ImmPACT® NovaRED HRP substrate produces a red reaction products. It produces 2-4 fold greater sensitivity than the original substrate kit (SK-4800).


  • Optimized for IHC/ICC/ISH and blots
  • Permanent mounting
  • Ideal for single and multiple labeling
  • Working solutions stable for up to 14 days at 4 °C
  • Supplied as 120 ml of diluent and stock solutions in dropper bottles


Unit Size1 kit
ApplicationsImmunohistochemistry / Immunocytochemistry, In situ hybridization, Blotting Applications, Elispot
Detection Enzyme(s)Peroxidase
Substrate Reaction ProductPrecipitating Reaction Product
Chromogen ColorRed
MicroscopyBrightfield, Darkfield, Electron, Spectral Imaging
Additional Substrate PropertiesContrast with Tissue Pigments, Multiple Labeling
MountingNon-Aqueous (Permanent)

Kit Contents:

  • 120 ml ImmPACT NovaRED Diluent
  • 3 ml ImmPACT NovaRED Reagent 1
  • 1.75 ml ImmPACT NovaRED Reagent 2
  • 1.75 ml ImmPACT NovaRED Reagent 3
  • 2.5 ml ImmPACT NovaRED Reagent 4


Technical Information

Vector® NovaRED and ImmPACT NovaRED HRP substrates are useful as alternatives to DAB or as a second color for multiple antigen labeling. Vector NovaRED and ImmPACT NovaRED substrates also provide excellent color contrast in pigmented tissue such as melanoma. 

SUBSTRATEsensitivity2 jpg

Substrate.CounterstainChart jpg SubstrateCombos jpg

Applicable patents and legal notices are available at legal notices.

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