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Sigma-Aldrich (formally MilliporeSigma) [5] [6] is an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate Merck Group. Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company.
It employs around 19,000 people in 66 countries and runs 65 manufacturing sites and uses the brands Sigma-Aldrich, Milli-Q and Millipore. [65] This division comprises all Millipore activities and major segments of the former Merck division Performance & Life Science Chemicals.Merck Millipore had three business units: Bioscience, Lab Solutions ...
Aldrichimica Acta is a scientific journal published by Sigma-Aldrich. Established in 1968 in Milwaukee, Wi, Aldrichimica Acta publishes reviews in the field of synthetic organic chemistry, with each issue focusing on a special topic. The journal is open access. In 2015, the Acta was ranked #1 among journals in the field of organic chemistry by ...
Aldrich was a leading supplier of organic research chemicals; Sigma a leading supplier of research biochemicals. [8] Together they became the 80th largest chemical company in the United States. [10] As of 1987, 35% of the chemicals sold by Aldrich were produced in-house.
Alfa Inorganics was founded in 1962 by Alfred Bader, in a 50:50 venture between Aldrich Chemicals and Metal Hydrides Inc. [6] [7] The purpose was to provide a source of inorganic research chemicals to sit alongside the organic chemicals of Bader's other company: Aldrich Chemicals. It was created to market inorganics, organometallics, and others ...
Benzyl bromide is used in organic synthesis for the introduction of the benzyl groups when the less expensive benzyl chloride is insufficiently reactive. [6] [7] Benzylations are often achieved in the presence of catalytic amounts of sodium iodide, which generates the more reactive benzyl iodide in situ. [3]
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