Chemistry:Isomaltose

For a disaccharide polyol derived from sucrose, see isomalt. For a disaccharide derived from sucrose, see isomaltulose.

Isomaltose

Names
IUPAC name 6-O-α-D-Glucopyranosyl-D-glucopyranose
Other names O-α-D-glucopyranosyl-α[1-6]-α-D-glucopyranoside
Identifiers
CAS Number	499-40-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:28189 Y
ChemSpider	388333 N
MeSH	Isomaltose
PubChem CID	439193
UNII	67I334IX2M Y
InChI InChI=1S/C12H22O11/c13-1-3-5(14)8(17)10(19)12(23-3)21-2-4-6(15)7(16)9(18)11(20)22-4/h3-20H,1-2H2/t3-,4-,5-,6-,7+,8+,9-,10-,11?,12+/m1/s1 N Key: DLRVVLDZNNYCBX-RTPHMHGBSA-N N InChI=1/C12H22O11/c13-1-3-5(14)8(17)10(19)12(23-3)21-2-4-6(15)7(16)9(18)11(20)22-4/h3-20H,1-2H2/t3-,4-,5-,6-,7+,8+,9-,10-,11?,12+/m1/s1 Key: DLRVVLDZNNYCBX-RTPHMHGBBU
SMILES O(C[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O)[C@H]2O[C@@H]([C@@H](O)[C@H](O)[C@H]2O)CO
Properties
Chemical formula	C12H22O11
Molar mass	342.297 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

Isomaltose is a disaccharide similar to maltose, but with a α-(1-6)-linkage instead of the α-(1-4)-linkage. Both of the sugars are dimers of glucose, which is a pyranose sugar. Isomaltose is a reducing sugar. Isomaltose is produced when high maltose syrup is treated with the enzyme transglucosidase (TG) and is one of the major components in the mixture isomaltooligosaccharide.

It is a product of the caramelization of glucose.

See also

• Isomalt
• Isomaltase
• Maltose