Idose

  • (2S, 3R, 4S, 5R) - Pentahydroxyhexanal
  • (2R, 3S, 4R, 5S) - Pentahydroxyhexanal

Colorless syrup

Fixed, often technically liquid

Soluble in water

Template: Infobox chemical / molecular formula search available

Idose is a monosaccharide with six carbon atoms. This sugar is in a group of non-naturally occurring aldohexoses with the molecular formula C6H12O6.

By oxidation of the terminal CH2OH group to the carboxyl group (-COOH), the iduronic acid is formed ( a uronic acid ). This is a part of the dermatan sulfate and heparan sulfate glycosaminoglycans.

As with any sugar (except dihydroxyacetone), there are two isomeric forms which are mutually mirror-image (enantiomers ).

Properties

Chemical Properties

Behavior in aqueous solution

In aqueous solution it is partly to an intramolecular ring closure so that an equilibrium between the aldehyde and the two ring forms ( furanose and pyranose ):

CAS registry number Haworth projection
407339
de