Psicose

D-Psicose
IUPAC name (3R,4R,5R)-1,3,4,5,6-pentahydroxyhexan-2-one
Other names Allulose
Identifiers
CAS number	23140-52-5
PubChem	90008
ChemSpider	81254 Y
MeSH	psicose
ChEBI	CHEBI:27605 Y
Jmol-3D images	Image 1
SMILES O=C([C@H](O)[C@H](O)[C@H](O)CO)CO
InChI InChI=1S/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h3,5-9,11-12H,1-2H2/t3-,5-,6+/m1/s1 Y Key: BJHIKXHVCXFQLS-PUFIMZNGSA-N Y InChI=1/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h3,5-9,11-12H,1-2H2/t3-,5-,6+/m1/s1 Key: BJHIKXHVCXFQLS-PUFIMZNGBH
Properties
Molecular formula	C6H12O6
Molar mass	180.16 g mol−1
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

D-Psicose (D-allulose, D-ribo-2-hexulose, C₆H₁₂O₆) is an ultralow-energy monosaccharide sugar. It is a C-3 epimer of D-fructose, and is present in small quantities in agricultural products and commercially-prepared carbohydrate complexes. It is known as a "rare sugar" because it is rarely found in nature, and even when found, only in small amounts. D-Psicose yields only 0.3% the metabolic energy of the equivalent amount of sucrose. Its name derives from the antibiotic psicofuranine, from which it can be isolated. Research is being conducted into how it can be used in diets to aid in combating hyperglycemia, hyperlipidemia, and obesity.

External links

• Rare Sugar Research Center