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Idose (Molecule of the Month for December 2007)

Hexose, Sugar



Idose is a hexose, a six carbon monosaccharide. It has an aldehyde group and is an aldose. It is not found in nature, but its uronic acid, iduronic acid, is important. It is a component of dermatan sulfate and heparan sulfate, which are glycosaminoglycans. The first and third hydroxyls point the opposite way from the second and fourth.

It is made by aldol condensation of D- and -L glyceraldehyde. L-Idose is a C-5 epimer of D-glucose.

Formal Chemical Name (IUPAC)
(2S,3S,4R,5R,6R)-6-(hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

References

http://en.wikipedia.org/wiki/Idose

Picture of Idose

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Idose structure
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Picture of Idose

C6 H12 O6



Update by Karl Harrison
(Molecule of the Month for December 2007 )