Unique high definition black IHC chromogen for HRP-activated development.
HIGHDEF® black IHC chromogen (HRP) is intended to be used in conjunction with horseradish peroxidase (HRP)-based immunostaining or in situ hybridization systems. With at least 1 day working stability, this substrate/chromogen system can be used in any automation system as well as manual use.
Application Note
Tumor Phenotyping and Immune Cell Regulation using Multiplex IHC
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Immunohistochemistry analysis: Formalin fixed paraffin embedded human tonsil stained with a high molecular weight cytokeratin antibody labeled and HIGHDEF® black IHC chromogen (HRP) (Prod. no. ADI-950-171) produces a sharply contrasting ebony black color.

Multiplex IHC staining performed on formalin-fixed paraffin-embedded human tonsil stained with CD8 antibody labeled with HIGHDEF® black IHC chromogen (HRP) (Prod. Ref. ADI-950-171), CD68 antibody labeled with HIGHDEF® yellow IHC chromogen (HRP) (Prod. Ref. ADI-950-170), CD163 antibody labeled with HIGHDEF® green AP chromogen/substrate (Prod. Ref. ENZ-ACC130), and hematoxylin counterstain. Image courtesy from Plateforme de Pathologie Expérimentale et Translationnelle – PETRA, Unité AMMICa, Gustave Roussy Cancer Campus, Villejuif, France.

Multiplex IHC staining performed on formalin-fixed paraffin-embedded human tonsil stained with FOXP3 antibody labeled with HIGHDEF® black IHC chromogen (HRP) (Prod. Ref. ADI-950-171), CD3 antibody labeled with HIGHDEF® yellow IHC chromogen (HRP) (Prod. Ref. ADI-950-170), CD8 antibody labeled with HIGHDEF® green AP chromogen/substrate (Prod. Ref. ENZ-ACC130), and hematoxylin counterstain. (Image courtesy from Plateforme de Pathologie Expérimentale et Translationnelle – PETRA, Unité AMMICa, Gustave Roussy Cancer Campus, Villejuif, France.)



Product Details
Application |
IHC, ISH (in situ hybridization) |
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Contents |
HIGHDEF® black IHC chromogen (HRP) substrate buffer and chromogen, Empty mixing bottle |
Technical Info / Product Notes |
The HIGHDEF® black IHC chromogen (HRP) is a substrate-chromogen system designed to be used for either immunohistochemistry (IHC) or ISH when utilizing horseradish peroxidase. HIGHDEF® black IHC chromogen (HRP) produces a sharply contrasting ebony black color that can easily be distinguished from other stains. |
Handling & Storage
Long Term Storage |
+4°C |
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Shipping |
Blue Ice |
Regulatory Status |
RUO – Research Use Only |
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- Gut Microbiota-Related Biomarkers in Immuno-Oncology: Silva, C. A. C., Fidelle, M., et al.; Annu. Rev. Pharmacol. Toxicol. 65, 333 (2025), Abstract
- Overcoming resistance to αPD-1 of MMR-deficient tumors with high tumor-induced neutrophils levels by combination of αCTLA-4 and αPD-1 blockers: L.N. Bral, et al.; J. Immunother. Cancer 10, e005059 (2022), Abstract
- Autoimmunity affecting the biliary tract fuels the immunosurveillance of cholangiocarcinoma: Paillet, J., Plantureux, C., et al.; J. Exp. Med. 218, (2021), Abstract
- Reciprocal nerve staining (RNS) for the concurrent detection of choline acetyltransferase and myelin basic protein on paraffin-embedded sections: A. Merolli, et al.; J. Neurosci. Methods 311, 235 (2019), Abstract
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