Talk:Baeyer–Drewsen indigo synthesis

External links modified
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 * Added archive https://web.archive.org/web/20100620213250/http://chemlab.truman.edu/Chemistryofartlabs/Synthesis%20of%20Indigo.pdf to http://chemlab.truman.edu/Chemistryofartlabs/Synthesis%20of%20Indigo.pdf

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Cheers.— InternetArchiveBot  (Report bug) 17:39, 13 July 2017 (UTC)

The product shown in step 10 is incorrect — Preceding unsigned comment added by 2A02:C7F:8C16:6600:59B6:6BD:CD6:1F17 (talk) 21:13, 7 November 2019 (UTC)