Gulose

Gulose is an aldohexose sugar. It is a monosaccharide that is very rare in nature, but has been found in archaea, bacteria and eukaryotes.^[3] It also exists as a syrup with a sweet taste. It is soluble in water and slightly soluble in methanol. Neither the d- nor l-forms are fermentable by yeast.

d-Gulose^[1]

Gulose
Names
IUPAC names D-Gulose d-gulo-Hexose[2]
Systematic IUPAC name (3R,4R,5R,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol
Identifiers
CAS Number	4205-23-6 (d) Y 6027-89-0 (l) Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:37695 Y
ChemSpider	146783 Y
DrugBank	DB01914 Y
PubChem CID	167792
UNII	25008KX916 (d) Y J96E9Q45N7 (l) Y
InChI InChI=1S/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h1,3-6,8-12H,2H2/t3-,4+,5-,6-/m0/s1 Y Key: GZCGUPFRVQAUEE-FSIIMWSLSA-N Y InChI=1/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h1,3-6,8-12H,2H2/t3-,4+,5-,6-/m0/s1 Key: GZCGUPFRVQAUEE-FSIIMWSLBF
SMILES O=C[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO
Properties
Chemical formula	C6H12O6
Molar mass	180.156 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

D-Gulose is a C-3 epimer of D-galactose and a C-5 epimer of L-mannose.^[4]