CD Markers

Primary Antibodies

CD Marker Antibodies

Cell‑surface markers for immunophenotyping and cell characterisation

Cluster of differentiation (CD) molecules are markers found on the surface of leukocytes and are used for their differentiation and investigation. These molecules often take the role of receptors or ligands and are essential for the cells they are found on. Usually, they initiate or participate in a signal cascade that changes cell behaviour, but in some cases CD proteins do not take part in cell signalling and instead they aid in cell adhesion.

How it works

Antibodies bind to specific CD antigens on cell surfaces

CD marker antibodies are designed to recognise and bind to specific CD antigens expressed on the surface of immune cells. When conjugated to fluorophores or enzymes, they enable the detection, quantification, and isolation of distinct cell populations. The CD nomenclature provides a systematic way to identify and study leukocyte subsets across a wide range of experimental models.

Category benefits

Why use CD marker antibodies?

✓ Precise immunophenotyping
CD marker antibodies allow researchers to identify and quantify specific immune cell populations based on their surface antigen profile, enabling detailed characterisation of cell subsets in health and disease.
✓ Multiparametric analysis
With fluorophore‑conjugated CD antibodies, multiple markers can be detected simultaneously on a single cell, allowing complex phenotyping and functional studies in a single experiment.
✓ Wide range of validated targets
Our catalogue includes antibodies against a broad spectrum of CD markers, with validation across multiple applications including flow cytometry, immunohistochemistry, and immunofluorescence, saving you time on optimisation.
✓ Flexible conjugate formats
Available as unconjugated or pre‑conjugated to a range of fluorophores (FITC, PE, APC, etc.) and enzymes, giving you the freedom to design multicolour panels that suit your cytometer and experimental needs.
Where they're used

Typical applications

✓ Flow cytometry
The most common application for CD marker antibodies. Flow cytometry allows rapid, quantitative, multiparametric analysis of cell populations, making it indispensable for immunophenotyping, cell sorting, and functional assays.
✓ Immunohistochemistry (IHC)
CD marker antibodies are used to visualise the distribution and localisation of specific immune cells within tissue sections, aiding in the diagnosis and study of inflammatory conditions, infectious diseases, and cancer.
✓ Immunofluorescence (IF) and immunocytochemistry (ICC)
For cellular localisation studies, fluorescently labelled CD antibodies enable the visualisation of surface markers on cultured cells or in tissue sections, providing spatial context for immune cell interactions.
✓ ELISA and Western blot
For quantitative measurement of soluble CD markers or detection of CD proteins in cell lysates, our antibodies are validated for use in ELISA and Western blot, supporting a wide range of experimental designs.

Need help choosing a CD marker antibody?

Contact our technical support team for assistance selecting the right antibody for your target of interest, including guidance on conjugate selection and application‑specific validation. Each product page includes a downloadable datasheet and SDS.

Looking for more CD marker antibodies?

Our full range includes antibodies against a wide range of CD targets, validated across multiple applications.

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