Company:  SIGMA ALDRICH CORP (SIAL)
Form Type:  8-K
Filing Date:  11/13/2008 
CIK:  0000090185 
Address:  3050 SPRUCE ST 
City, State, Zip:  ST LOUIS, Missouri 63103 
Telephone:  (314) 771-5765 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$53.94  
Change: 
0.06 (0.11%)  
Trade Time: 
Nov 20  
Market Cap: 
$6.56B
Description of Business
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  FORM 8-K
    SECTION 8 OTHER EVENTS
      Item 8.01 Other Events.
    SECTION 9 FINANCIAL STATEMENTS AND EXHIBITS
      Item 9.01 Financial Statements and Exhibits.
    SIGNATURE
    EXHIBIT INDEX
  EXHIBIT 99.1