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.

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.

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

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.

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.

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.

Streptavidin, avidin, and NeutrAvidin protein conjugates with fluorophores and enzymes are key components of many immunoassays and cell analysis methods involving biotinylated (biotin-labeled) primary or secondary antibodies. Learn about our wide selection.

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

Antibody Performance Guarantee

As a leading provider of high-quality, validated antibodies, our products are used by researchers around the world. Our customers purchase with confidence, knowing that we stand behind the quality of our antibodies with the Invitrogen™ antibody performance guarantee.