Sigma-Aldrich Corporation to Present at Upcoming Investor Conferences

ST. LOUIS, June 1, 2011 /PRNewswire/ -- Sigma-Aldrich Corporation (NASDAQ: SIAL) will be presenting at the following investor conferences in June:

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• Jefferies 2011 Global Healthcare Conference on Monday, June 6, 2011, at the Grand Hyatt, New York, NY, presenting at 11:30 AM (Eastern).
• 32nd Annual Global Healthcare Conference on Thursday, June 9, 2011, at the Terranea Resort, Rancho Palos Verdes, Los Angeles, CA, presenting at 8:40 AM (Pacific).
• NASDAQ OMX 26th Investor Program on Tuesday, June 21, 2011, at the May Fair Hotel, London, England presenting at 1:15 PM (GMT).

Interested parties may listen via live audio broadcast over the Internet available at http://investor.sigmaaldrich.com/.  Users can click the "Webcast" icon to access this file.

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About Sigma-Aldrich: Sigma-Aldrich is a leading Life Science and High Technology company committed to Enabling Science to Improve the Quality of Life. Its chemical and biochemical products and kits are used in scientific research, including genomic and proteomic research, biotechnology, pharmaceutical development and as key components in pharmaceutical, diagnostic and other high technology manufacturing. The Company has customers in life science companies, university and government institutions, hospitals, and in industry. Over one million scientists and technologists use its products. Sigma-Aldrich operates in 40 countries and has 8,000 employees providing excellent service worldwide. For more information about Sigma-Aldrich, please visit its award-winning Web site at http://www.sigma-aldrich.com.

SOURCE Sigma-Aldrich Corporation