Adrich Chemical

Aldrich Chemical (Sigma-Aldrich; also known as: Sigma Aldrich) the world's top ten manufacturers of precision chemical materials, was founded in 1951 in St. Louis, Missouri, the United States, is committed to genome research, biotechnology, drug discovery, disease diagnostics and other scientific fields to provide biochemical and organic chemical products and kits; in the 2014 Forbes Global Enterprise 2000 Forbes Global 2000; ranked No. 1512 in the 2014 Forbes Global 2000.