6-o-a-d-glucopyranosyl-d-glucose

Isomaltose (D-Isomaltose) is a reducing disaccharide, similar to maltose, but with an α-(1-6)-linkage instead of the α-(1-4)-linkage.

Palatinose hydrate (6-O-α-D-Glucopyranosyl-D-fructose, Isoma) is a disaccharide having an α(1→6) linkage between D-glucose and D-fructose and is similar to sucrose in its physicochemical properties. It is produced from sucrose in some bacteria by the action of sucrose isomerase. In mammalian gut, palatinose is hydrolyzed and absorbed much more slowly than sucrose.