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fischer projection

D and L Sugars

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

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The Meso Trap

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

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