Summary of SIGMA ALDRICH CORP

Item 7.01 Regulation FD Disclosure.

Attached hereto as Exhibit 99.1 is a copy of the presentation to be used by representatives of Sigma-Aldrich Corporation ("Company") at the Leerink Swann 2013 Global Healthcare Conference on Thursday, February 14, 2013 in New York, NY. Company representatives will be speaking at 12:00 PM (Eastern) and interested parties may listen via live audio broadcast and view the presentation slides over the Internet available at http://investor.sigmaaldrich.com/. Users can click the "Webcast" icon to access this file.

The information in this Current Report on Form 8-K and the attached Exhibit shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

Exhibit No.               Description
99.1                      Presentation to be used by representatives of
                          Sigma-Aldrich Corporation at the Leerink Swann 2013
                          Global Healthcare Conference on Thursday, February 14,
                          2013.