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Carbohydrate Nomenclature

Fischer Projections

When carbohydrates derived from D-glyceraldehydesare represented as Fischer projections, they are named as given below:

Haworth Projections

Simple sugars will exist primarily as a hemiacetal in solution. When sugars are represented in this way, the representation is referred to as a Haworth projection. In these cyclic structures, the names are changed to account for the size of the ring, and the position of the anomeric hydroxyl group as indicated below: