Our antibodies cover over 70% of the proteome
Explore our extensive portfolio of more than 48,000 high-quality primary and secondary antibodies, supported by an extensive range of antibody-related products and custom services. Our antibody assays are validated by thousands of citations worldwide, helping you achieve superior results in a wide range of detection and purification applications.

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 primary and secondary antibodies in a wide variety of research immunoassay applications, including western blotting, flow cytometry, immunofluorescence, ELISA, immunoprecipitation (IP), and immunohistochemistry.


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.

Antibodies Scholarship Program

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.

Antibody Data Exchange Program (formerly Innovators Program)

Antibody Data Exchange 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 program and receive additional antibodies of equal or lesser value absolutely free.

Antibodies seeking partners for binding relationships

Meet our antibodies.

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