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News & Information

St. Louis, MO - June 15, 2015 Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives Approval from European Union Regulators and from Chinese Ministry of Commerce

Sigma-Aldrich Corporation (NASDAQ: SIAL) announced today that the European Commission (the "EC") has conditionally cleared the planned acquisition of the Company by Merck KGaA, Darmstadt, Germany (the “Transaction”).  Sigma-Aldrich also announced it has obtained full clearance of the Transaction from the Chinese Ministry of Commerce.

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St. Louis, MO - June 11, 2015 Sigma-Aldrich® Named to Newsweek's 2015 Green Rankings

St. Louis-Based Company Remains One of Nation's Environmental Elite

Sigma-Aldrich Corporation (NASDAQ: SIAL) was named in the top five in Newsweek's 2015 Green Rankings, one of the world's most recognized assessments of corporate environmental performance. In its fourth appearance on the list, Sigma-Aldrich maintained its number five ranking among the U.S. 500, which consists of the 500 largest publicly traded companies headquartered in the U.S. by market capitalization. The recognition once again places the St. Louis-based life science company in the top one percent for environmental performance.

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St. Louis, MO - June 9, 2015 Cerilliant Introduces Snap-N-Spike® Stable-Labeled Internal Standards of Antifungal Agents

Sigma-Aldrich Corporation (NASDAQ: SIAL) announced today that the Cerilliant® brand within its Applied Diagnostics and Testing business unit has introduced five new stable-labeled internal standards of the antifungal agents fluconazole, itraconazole, ketoconazole, posaconazole, and voriconazole at 1.0 mg/mL concentrations.

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St. Louis, MO - June 4, 2015 Sigma-Aldrich Expands Analytical Portfolio with National Institute of Standards and Technology Standard Reference Materials

Collaboration Provides Customers with Global Access to Standard Reference Materials

Sigma-Aldrich Corporation (NASDAQ: SIAL), announced today that the National Institute of Standards and Technology (NIST) has selected Sigma-Aldrich as the first licensed distributor of NIST Standard Reference Materials® (SRMs). This agreement enables Sigma-Aldrich to further expand its global analytical product line and make NIST reference materials readily available to customers worldwide. Sigma-Aldrich and NIST will also collaborate to develop new Standard Reference Materials for quantitative Nuclear Magnetic Resonance (qNMR).

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