SIAL (MM)

ST. LOUIS, Nov. 4, 2011 /PRNewswire/ -- Sigma-Aldrich Corporation (NASDAQ: SIAL) will be presenting at the following investor conferences in November:

• CLSA AsiaUSA Forum 2011 on Wednesday, November 9, at the Palace Hotel, San Francisco, CA, presenting at 10:30 AM (Pacific).
• Mizuho Securities USA Inc. 2011 One-on-One Equity Conference on Thursday, November 17, at Loews Regency Hotel, New York, NY.

Interested parties may listen via live audio broadcast of the CLSA AsiaUSA Forum 2011 over the Internet available at http://investor.sigmaaldrich.com/. Users can click the "Webcast" icon to access this file.

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 8,300 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