fischer projection

D and L Sugars

May 24, 2017

What differentiates “D-glucose” from “L-glucose” ? Or D-alanine from L-alanine? What’s this D- and L- nomenclature, anyway? For everyone in a rush, here is the quick and dirty answer: For…

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The Meso Trap

The Meso Trap

January 12, 2011

Question: Are these molecules enantiomers, diastereomers, or the same? If you immediately recognized this as a molecule with an internal plane of symmetry (and thus an achiral molecule, incapable of having an enantiom…

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On Cats, Part 8: Moe the Meso Cat

On Cats, Part 8: Moe the Meso Cat

December 24, 2010

I got a very excited call from Walter yesterday. He was looking out the window of his apartment in Talbieh and spied a freaky looking cat with each of his two heads buried in a separate dumpster, happily chewing on so…

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