ST. LOUIS, Sept. 9 /PRNewswire-FirstCall/ -- Sigma-Aldrich Corporation (Nasdaq: SIAL) will be presenting at the Stifel Nicolaus 2010 Healthcare Conference on Thursday, September 16th at 2:05 PM ET in Boston, MA. 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.
