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Live Webcast
Q2 2008 Sigma-Aldrich Corporation Earnings Conference Call
July 23, 2008, 11:00 AM ET
Sigma-Aldrich Corporation at NASDAQ Investor Program
May 21, 2008, 11:45 AM UKT
Sigma-Aldrich Corporation at Robert W. Baird & Co., Inc. Growth Stock Conference
May 13, 2008, 1:20 PM CT
Sigma-Aldrich Corporation at Banc of America Securities Health Care Conference
May 13, 2008, 10:40 AM PT
Sigma-Aldrich Corporation Annual Shareholder’s Meeting
May 6, 2008, 12:00 PM ET

Sigma-Aldrich is a leading Life Science and High Technology company. Our 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. We have customers in life science companies, university and government institutions, hospitals and in industry. Sigma-Aldrich operates in 36 countries and has over 7,900 employees providing excellent service worldwide.

Date Title (click for more)
7/15/2008 Aldrichimica Acta Ranked First in Organic Chemistry by Impact Factor
7/8/2008 Sigma-Aldrich Announces Collaboration With Metahelix Life Sciences
6/24/2008 Sigma-Aldrich Introduces 96-Well Plasmid Purification Kit That Produces Industry's Highest Viral Titers
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SIAL Common Stock
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6201 15th Street
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Toll Free: (800) 937-5449
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Email: investors@amstock.com
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