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Sigma-Aldrich

Sigma-Aldrich (NASDAQ: SIAL) provides a range of biochemicals and organic chemicals.

Expanded Definition

Aldrich Chemical company is best known as a supplier of laboratory chemicals, especially organic chemicals. They are noted for the excellent service and rapid delivery. Sigma chemicals is also supplier of laboratory chemicals, but the emphasis is biochemicals and supplies for clinical laboratories. Supelco is best known for its supplies used in analysis of chemicals.

Aldrich is primarily a repackager and distributor of chemicals made by others, but also has facilities to manufacture chemicals and does custom manufacturing. That includes manufacture of pharmaceutical intermediates.

Major competitors are Thermo Fisher Scientific, whose Fisher Scientific division supplies laboratory chemicals as well as lab equipment and Covidien, whose Mallinckrodt Baker divisions also makes and supplies laboratory chemicals.

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