Talk:Ibuprofen

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[edit] Wrong chirality?

There are two different 3D depictions of the molecule on this page - one in the upper right and one further down in the text; ironically in the stereo chemistry section. As far as I can figure out, the two show different chirality. The 2D structure at the top uses a zig-zagged line at the alpha carbon which I'm not familiar with - I only know the wedge-type depiction of chiral bonds. So I don't know which of the two this agrees with. But at least one of the three would appear to be wrong if there's at least two that disagree with each other. —Preceding unsigned comment added by Iron Condor (talk • contribs) 17:09, 3 June 2008 (UTC)

Zig-zag lines (more usually drawn as wavy lines) are a stereochemical wild card - they mean either or both enantiomers.

My image (the 3D one in the chembox) is one of the enantiomers (the (R) isomer, in fact) - it's taken from the crystal structure of racemic ibuprofen. I'll draw another image, of the other enantiomer.

The image below says it is the (R) isomer, but I'm pretty sure it's the (S) isomer.

Ben (talk) 17:34, 3 June 2008 (UTC)

Yep—just checked in ChemSketch. You can make the ring aromatic while you're at it ;) Fvasconcellos (t·c) 18:29, 3 June 2008 (UTC)