By a GenomeWeb staff reporter

NEW YORK (GenomeWeb News) – Sigma-Aldrich today reported that its fourth-quarter revenues increased 5 percent, or 3 percent organically, but it fell short of Wall Street's expectations.

The St. Louis-based research and chemical products firm reported total revenues of $610 million for the three-month period ended Dec. 31, compared to $582 million for the fourth quarter of 2010. Analysts, on average, had expected revenues of $626.9 million.

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