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Topic: Erythrosine  (Read 1961 times)

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Offline GabrielOPerez

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Erythrosine
« on: August 27, 2013, 11:21:35 PM »
Hey guys, I have a question about the structure of erythrosine. The image over at wikipedia ...

says that this is the structure. Upon inspection of the molecular model, it appears that there is an sp3 hybridized carbon connecting two rings - one of which is 5-sided. From the image, there is no 5 sided ring. So, I'm curious, what is the structure?

Model is here: http://chemapps.stolaf.edu/jmol/jmol.php?model=Ic5cc4c%28Oc1c%28cc%28I%29c%28O%29c1I%29C43OC%28%3DO%29c2ccccc23%29c%28I%29c5O  thanks.
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Offline Babcock_Hall

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Re: Erythrosine
« Reply #1 on: August 28, 2013, 10:44:44 AM »
It seems as if one of the carboxylate oxygen atoms can attack the carbon atom in question:
http://patentimages.storage.googleapis.com/US20070236763A1/US20070236763A1-20071011-C00026.png
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Offline GabrielOPerez

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Re: Erythrosine
« Reply #2 on: August 28, 2013, 11:10:06 AM »
Oh okay, thanks!
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