Isomaltose

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

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.

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
ECHA InfoCard	100.007.164
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

It is a product of the caramelization of glucose.^[1]

See also

• Isomalt
• Isomaltase
• Maltose