The gulose is a kind of the monosaccharide classified into hexose and the aldose.

It is an epimer in 3rd place of the galactose.

If the structure is written by Fischer projection formula, the direction of the ligand just becomes opposite direction with the glucose.

Therefore, it is said that the gulose upsets the name of the glucose and was named.

The gulose causes the isomerization in a solution, and becomes a compound with the ring-shaped structure.(mutarotation)

It is β-pyranose body that the　abundance ratio is the highest in the condition of equilibrium.