Aldrich, the chemistry brand of Sigma-Aldrich Corporation, is a recongnized leader in the research and fine chemicals market.
http://www.sigmaaldrich.com

Supplies mounting media, tissue fixative, clearing agent and random acess liquid for RA analyzers.
http://www.amresco-inc.com

Producing highly purified organic and inorganic chemicals, solutions and mixtures, and chemical kits, suitable for use as analytical standards and reference materials.
http://www.chemservice.com

The basic product range comprises chemicals and reagents for analytical, organic and biochemical research, as well as intermediates for the chemical and pharmaceutical industry.
http://www.sigmaaldrich.com

Sigma-Aldrich is a leading Life Science and High Technology company. Their biochemical and organic chemical products and kits are used in scientific and genomic research, biotechnology, pharmaceutical development, the diagnosis of disease and as key components in pharmaceutical and other high technology manufacturing.
http://www.sigmaaldrich.com