Primary Antibodies

Primary antibodies are immunoglobulins that bind directly to antigens with high specificity and high affinity. Primary antibodies can be conjugated to reporter enzymes or fluorophores, or combined with secondary antibodies to detect, purify or measure biomolecules of interest. Common laboratory applications of antibodies include western blot, immunohistochemistry, immunoprecipitation, flow cytometry and ELISA.

We offer over 75,000 unconjugated and directly conjugated primary antibodies directed against more than 14,000 targets. Our catalog of primary antibodies includes over 24,000 monoclonal and recombinant antibodies for high batch-to-batch reliability and known antigenic specificity for reproducible results.