Explore our extensive portfolio of more than 40,000 high-quality antibodies, supported by an extensive range of antibody-related products and custom services. Our antibody assay results are validated by thousands of citations worldwide, helping you achieve superior experimental results in a wide range of antibody applications.

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Featured antibody categories

Primary Antibodies

High-quality primary antibodies for cancer research, epigenetics, immunology, neuroscience, stem cell research, and more, validated for multiple applications, including western blotting, immunoprecipitation, and flow cytometry.

Custom Antibodies

With a proven track record of >18,000 custom antibody projects completed to date, our custom antibody development, purification, and screening services deliver quality, consistency, and performance.

Antibody Production

View our diverse portfolio of tools for immunogen preparation, immunization, screening, and isotyping, and our antibody labeling reagents to help improve signaling and detection results.

Antibody Purification

Choose from a wide selection of antibody purification products to achieve the selective enrichment or specific isolation of antibodies from serum (polyclonal antibodies), ascites fluid, and hybridoma cell lines.

Secondary Antibodies

Validated, conjugated and unconjugated secondary antibodies for fluorescent, colorimetric, or chemiluminescent detection. Our secondary antibodies are suitable for western blotting, IHC, ICC, flow cytometry.

Antibody Applications

Use our antibodies in a wide range of applications, including western blottting, immunofluorescence, ELISA, immunoprecipitation, immunohistochemistry, and more.


We offer a wide range of ELISAs and related immunoassays that use antibody pairs for single-analyte (ELISA Kits) and multi-analyte (Luminex® Assays) detection for the accurate quantitation of intracellular or extracellular proteins.

Antibody Labeling

View our extensive selection of antibody and protein labeling kits for the direct attachment of intensely fluorescent dyes, enzymes, and secondary labels, including Alexa Fluor® dyes, Qdot® labels, R-phycoerythrin, and biotin.


Innovators Program

We are committed to collecting performance data and researchers' feedback on our qualified antibodies, and offer rewards when you share your data with us. Submit your data for qualified antibodies to the Innovators Program and receive additional antibodies of equal or lesser value absolutely free.


Scholarship Program

We are now offering $40,000 in scholarship awards for both undergraduate and graduate students. All life science majors qualify. For more details about the program and official rules, review our FAQs or contact our Scholarship Coordinator.


Partner with us to scale-up your process or product development pipeline with bulk quantities of high-quality immunoassay reagents and biochemicals. We offer a variety of compounds, devices, and resins for your large-scale applications.

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