Sigma-Aldrich (NASDAQ: SIAL) Declares $0.20 Quarterly Dividend

        Sigma-Aldrich (NASDAQ: SIAL) Declares $0.20 Quarterly Dividend

PR Newswire

ST. LOUIS, Nov. 16, 2012

ST. LOUIS, Nov. 16, 2012 /PRNewswire/ -- The Board of Directors of
Sigma-Aldrich Corporation (NASDAQ: SIAL) has approved a quarterly cash
dividend of $0.20 per share. The dividend is payable on December 14, 2012 to
shareholders of record on November 30, 2012.

About Sigma-Aldrich: Sigma-Aldrich is a leading Life Science and High
Technology company whose biochemical and organic chemical products, kits and
services are used in scientific research, including genomic and proteomic
research, biotechnology, pharmaceutical development, the diagnosis of disease
and as key components in pharmaceutical, diagnostics and high technology
manufacturing. Sigma-Aldrich customers include more than one million
scientists and technologists in life science companies, university and
government institutions, hospitals and industry. The Company operates in 38
countries and has approximately 9,000 employees whose objective is to provide
excellent service worldwide. Sigma-Aldrich is committed to accelerating
customer success through innovation and leadership in Life Science, High
Technology and Service. For more information about Sigma-Aldrich, please
visit its website, at

SOURCE Sigma-Aldrich

Contact: Quintin Lai, Vice President, Investor Relations, +1-314-898-4643
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