Issue Date: July 7, 2008
In keeping with C&EN’s desire for accuracy, I point out that in “Made in Wisconsin” the Sheboygan Falls, Wis., chemical plant that Sigma-Aldrich now owns (and has greatly expanded) was sold by a subsidiary of Joseph Schlitz Brewing to a Milwaukee-based real estate company (C&EN, May 12, page 27). It was then leased and operated by Willow Brook Labs of Waukesha, Wis., and then Cambridge of Germantown, Wis., before being sold to Aldrich Chemical in 1977, which by then had merged to create the Sigma-Aldrich we all know and love.
Richard J. Pariza
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