Xylulose

Xylulose[1][2]
IUPAC name (3R,4S)-1,3,4,5-Tetrahydroxypentan-2-one
Other names threo-Pentulose threo-2-Pentulose
Identifiers
CAS number	5962-29-8 (D/L) Y, 551-84-8 (D) Y, 527-50-4 (L) Y
PubChem	22253
ChemSpider	20892 Y
ChEBI	CHEBI:17399 Y
Jmol-3D images	Image 1
SMILES C([C@@H]([C@H](C(=O)CO)O)O)O
InChI InChI=1S/C5H10O5/c6-1-3(8)5(10)4(9)2-7/h3,5-8,10H,1-2H2/t3-,5+/m0/s1 Y Key: ZAQJHHRNXZUBTE-WVZVXSGGSA-N Y InChI=1S/C5H10O5/c6-1-3(8)5(10)4(9)2-7/h3,5-8,10H,1-2H2/t3-,5+/m0/s1
Properties
Molecular formula	C5H10O5
Molar mass	150.13 g/mol
Appearance	Syrup
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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.

Pathology

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.

See also

• Arabinose
• Deoxyribose
• Lyxose
• Ribose
• Ribulose
• Xylose

References

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

External links

This article about a ketone is a stub. You can help Wikipedia by expanding it.v · Categories: Ketone stubs Ketopentoses Wikimedia Foundation. 2010. Игры ⚽ Нужен реферат? Josh Miller Cristoffer Andersson Look at other dictionaries: Xylulose — D et L Xylulose structure Général Nom IUPAC (3R,4S) 1,3,4,5 Tetrahydroxypentan 2 one …   Wikipédia en Français Xylulose — Strukturformel Fischer Projektion, offenkettige Darstellung Allgemeines …   Deutsch Wikipedia Xylulose — Xy|lu|lo|se [↑ Xyl (2) u. ↑ ulose], die; ; Symbol: Xul; systematisches Syn.: D threo Pent 2 ulose: mit Xylose isomere Pentulose, als Glucuronsäuremetabolit ein Zwischenprodukt des Pentosephosphatwegs. * * * Xylulose   die …   Universal-Lexikon xylulose — threo Pentulose; a 2 ketopentose. l X. appears in the urine in cases of essential pentosuria; it is also an intermediate in the glucuronate pathway. SYN: xyloketose. x. 5 phosphate the d isomer is an intermediate in the pentose phosphate …   Medical dictionary xylulose — ksiluliozė statusas T sritis chemija apibrėžtis Ketopentozė. formulė HOCH₂CO(CHOH)₂CH₂OH atitikmenys: angl. xylulose rus. ксилулоза …   Chemijos terminų aiškinamasis žodynas Xylulose 5-phosphate — Identifiers CAS number 60802 29 1 …   Wikipedia Xylulose-5-phosphat — Strukturformel deprotonierte Form vonD Xylulose 5 phosphat Allgemeines …   Deutsch Wikipedia xylulose — A 5 carbon ketose sugar, whose 5 phosphate is an intermediate in the pentose phosphate pathway and the Calvin Benson cycle …   Dictionary of molecular biology xylulose — noun The ketopentose (3R,4S) 1,3,4,5 Tetrahydroxypentan 2 one …   Wiktionary xylulose — xy·lu·lose …   English syllables 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”