From Wikipedia, the free encyclopedia
  (Redirected from D-xylulose)
Jump to: navigation, search
CAS number 5962-29-8 (D/L) N, 551-84-8 (D) YesY, 527-50-4 (L) YesY
PubChem 22253
ChemSpider 20892 YesY
ChEBI CHEBI:17399 YesY
Jmol-3D images Image 1
Molecular formula C5H10O5
Molar mass 150.13 g/mol
Appearance Faint yellow syrup
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox references

Xylulose is a ketopentose, a monosaccharide containing five carbon atoms, and including a ketone functional group. It has the chemical formula C5H10O5. In nature, it occurs in both the L- and D-enantiomers.


L-Xylulose accumulates in the urine in patients with pentosuria, due to a deficiency in L-xylulose reductase. Since L-xylulose is a reducing sugar like D-glucose, pentosuria patients have been wrongly diagnosed in the past to be diabetic.


  1. ^ Data is for L-xylulose.
  2. ^ Merck Index, 11th Edition, 9996.