Angelic Acid

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Angelic acid isn’t very angelic at all – it’s a defence substance for certain beetles. It gets its name from the Swedish plant Garden Angelica (Archangelica officinalis) from whose roots it was first obtained in the 1840s. Its proper name is (Z)-2-methyl-2-butenoic acid. The other isomer (E) goes by the equally silly name of tiglic acid (from the plant Croton tiglium, the source of croton oil) and is also a beetle defence substance.

Thanks to Andrew Walden for suggesting these molecules and to Florian Raab and Bo Ohlson for providing some of the information about them.

Angelic acid - click for 3D structure
Tiglic acid - click for 3D structure

Sourced and published by Henry Sapiecha 18th October 2009

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3 Responses to “ANGELIC ACID – WHAT A NAME”

  1. Norris Welles Says:

    very good insight, I really enjoyed reading this, keep it up!

  2. Editor Says:

    It is much appreciated that you enjoy the postings and content and say so publicly
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    Henry Sapiecha
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  3. Transcribe Says:

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