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 Rakesh Sachdev, President and Chief Executive Officer of Sigma-Aldrich Corporation, at J.P. Morgan's 31st Annual Healthcare Conference on Monday, January 7, 2013. Mr. Sachdev will be speaking at 4:00 PM (Pacific) and interested parties may listen to his presentation via a live audio broadcast 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 Rakesh Sachdev, President
                          and Chief Executive Officer of Sigma-Aldrich
                          Corporation, at J.P. Morgan's 31st Annual Healthcare
                          Conference on Monday, January 7, 2013.