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jan 28, 1829 - Kekulé, A. (1829-1896)

Description:

Laid foundations of aromatic chemistry; conceived of four-valent carbon and structure of benzene ring; predicted isomeric substitutions (ortho-, meta-, para-).

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26 Sep 2017
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history of chemistry

Date:

jan 28, 1829
Now
~ 189 years ago

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