Sigma-Aldrich is a leading Life Science and High Technology company whose biochemical, organic chemical products, kits and services are used in scientific research, including genomic and proteomic research, biotechnology, pharmaceutical development, the diagnosis of disease and as key components in pharmaceutical, diagnostics and high technology manufacturing.

Thomas is an authorized distributor of Sigma-Aldrich products. We carry Sigma-Aldrich's complete line. If you can not find the product you need on our website, contact us and we will gladly assist you in getting the items you need.