Talk:Benzenesulfonic acid

External links modified
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I have just modified 1 one external link on Benzenesulfonic acid. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20120107051543/http://www.sigmaaldrich.com:80/catalog/ProductDetail.do?lang=en to http://www.sigmaaldrich.com/catalog/ProductDetail.do?lang=en&N4=12635

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Cheers.— InternetArchiveBot  (Report bug) 06:08, 31 October 2016 (UTC)