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Primary 
Antibodies

Power your research with carefully curated primary antibodies, available purified or conjugated to bright, photostable CF® Dyes and other labels. Shaped by your unmet needs, our growing catalog of 2,000+ monoclonal antibodies includes validated options for immunofluorescence (IF), immunohistochemistry (IHC), flow cytometry, and Western blot—delivering optimized performance and reliable results.

Primary Antibodies for Cancer Research

Drive diverse cancer research with high-performance antibodies, targeting key solid tumor and hematologic markers—available with a wide range of labels.

Primary Antibodies for Organelles

Target a broad range of organelle markers with primary antibodies against the mitochondria, Golgi apparatus, nucleus, and more, labeled with CF® Dyes, biotin, or purified.

Primary Antibodies for Exosomes/EVs

Fuel extracellular vesicle (EV) research with validated and optimized primary antibodies against key exosome markers, including the tetraspanin proteins CD9, CD63, and CD81.

Primary Antibodies for Microbiology

Advance microbial research with highly specific antibodies against bacterial, viral, and fungal targets, available in various dye colors and labels.

Primary Antibodies for Neuroscience

Choose from a wide range of highly specific monoclonal antibodies conjugated to ultra-bright CF® Dyes or other labels to power your neurological research.

Anti-Human Immunoglobulin

Target human IgG, IgA, and IgM with highly specific antibodies—available purified or conjugated to CF® Dyes or biotin for diverse research applications.

Isotype Controls

Have confidence in your results with non-reactive negative controls, available with a wide range of labels for Western blot, flow cytometry, ELISA, and more.

Antibody Finder

Find the perfect antibody product with our advanced search tool—filter by target, host, conjugate, cross-adsorption, and more to match your research needs.

Technology Highlight

Curated. Validated. Optimized.

Be confident in your results with Biotium Choice antibodies—validated in-house and available with bright CF® Dyes, Astral Leap™ tandem dyes, and more.

  • Over 40 CF® Dyes across the visible, far-red & near-IR spectra—find your best fit
  • Developed in-house by industry-leading chemists, CF® Dyes outshine alternatives
  • Available as antibodies, conjugates, reactive dyes, and easy-to-use labeling kits
  • Supporting IF and super-resolution microscopy, flow cytometry, and more
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Resources That Fuel Bright Ideas

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