Sigma-Aldrich (Nasdaq: SIAL) Q3 2007 Sales Increase 14.0%, Yielding Diluted EP...(d acquired inventories. About Sigma-A...)

About Sigma-Aldrich: Sigma-Aldrich is a leading Life Science and High Technology company. Our biochemical and organic chemical products and kits are used in scientific and genomic research, biotechnology, pharmaceutical development, the diagnosis of disease and as key components in pharmaceutical and other high technology manufacturing. We have customers in life science companies, university and government institutions, hospitals and in industry. Over one million scientists and technologists use our products. Sigma-Aldrich operates in 36 countries and has 7,800 employees providing excellent service worldwide. We are committed to accelerating our Customers' success through leadership in Life Science, High Technology and Service. For more information about Sigma-Aldrich, please visit our award winning web site at http://www.sigma-aldrich.com.

Non-GAAP Financial Measures: The Company uses certain non-GAAP financial measures to supplement its GAAP disclosures. The Company does not, and does not suggest investors should, consider such non-GAAP financial measures in isolation from, or as a substitute for, GAAP financial information. These non-GAAP measures may not be consistent with the presentation by similar companies in the Company's industry. Whenever the Company uses such non-GAAP measures, it provides a reconciliation of such measures to the most closely applicable GAAP measure.

With over 60% of sales denominated in currencies other than the U.S. dollar, management uses currency adjusted growth, and believes it is useful to investors, to judge the Company's controllable, local currency performance. Organic sales growth data presented in this release is proforma data and excludes currency, and where indicated, acquisition impacts. While we are able to report currency impacts after the fact, we are unable to estimate changes that may occur later in 2007 to applicable exc
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