Antibodies

search for and buy antibodies from Sigma-Aldrich.

Search & filter by validated application (ie, WB, IF/ICC, IHC, ELISA, etc,) host species, clonality (monoclonal, polyclonal and recombinant) and more. Learn from technical information, product highlights, protocols, tips and guides to help you utilize our antibody portfolio to solve the toughest problems in life sciences.

View and compare over 90,000 highly cited (> 10,000 citations per year) primary antibody products and over 2,000 secondary antibodies from brands you know and trust including Sigma-Aldrich, MIllipore, Upstate, Chemicon and Calbiochem, through the Antibody Explorer.


 

Explore Recombinant, Polyclonal & Monoclonal Antibodies

 
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Learn more about western blotting. Find out how to achieve better reproducibility in western blots.


Duolink® secondary antibody technology from Sigma-Aldrich
Duolink®, Protein Interaction Technology
See what you’ve never seen before with amplified Duolink® secondary antibody technology.
Combine the specificity of secondary antibodies, with the sensitivity afforded by rolling circle amplification to detect endogenous proteins in cells and tissues.
 
Search for and buy antibodies specific to organelle and subcellular markers
Organelle Marker Antibodies

• Comprehensive panel for organelle &
  subcellular localization studies
• Polyclonals and monoclonals for
  double-staining immunofluorescence
• Designed to recognize multiple species
  with low cross-reactivity

 
 
Prestige Antibodies®
 
• Most Validated Antibodies on the
  Market
• Supported by the Human Protein Atlas
• Monoclonal and Polyclonal




 
Protocols for Prestige antibody western blots, immunoblotting, antibody purification and more.
Antibody Resource Center
Comprehensive collection of antibody protocols, protocol tips and tricks for Western blot, immunohistochemistry (IHC), immunofluorescence (IF), and ELISA presented in technical articles, webinars, and videos.