Attached files

file filename
EX-32.2 - CFO CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 - SIGMA ALDRICH CORPd228865dex322.htm
10-Q - FORM 10-Q - SIGMA ALDRICH CORPd228865d10q.htm
EX-31.2 - CFO CERTIFICATION PURSUANT TO EXCHANGE ACT RULE 13A-14(A) - SIGMA ALDRICH CORPd228865dex312.htm
EX-31.1 - CEO CERTIFICATION PURSUANT TO EXCHANGE ACT RULE 13A-14(A) - SIGMA ALDRICH CORPd228865dex311.htm
EXCEL - IDEA: XBRL DOCUMENT - SIGMA ALDRICH CORPFinancial_Report.xls

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AND EXCHANGE ACT RULE 13a-14(b)

In connection with the quarterly report of Sigma-Aldrich Corporation (the “Company”) on Form 10-Q for the period ending September 30, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Rakesh Sachdev, President and Chief Executive Officer of the Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

 

  (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

 

  (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

 

/s/ Rakesh Sachdev

Rakesh Sachdev

President and Chief Executive Officer

Sigma-Aldrich Corporation

October 25, 2011

 

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