Galactose

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Galactose
Galactose-3D-balls.png
Beta-D-Galactopyranose.svg
DL-Galactose num.svg
Identifiers
CAS number 59-23-4
PubChem 439357
KEGG D04291
MeSH Galactose
ChEBI CHEBI:28061
ATC code V04CE01,
V08DA02 (microparticles)
SMILES O[C@H]1[C@@H](O)[C@H](O[C@H](O)[C@@H]1O)CO
Properties
Molecular formula C6H12O6
Molar mass 180.156 g mol−1
Density 1.723 g/cm3
Melting point

167 °C, 440 K, 333 °F

Solubility in water 683.0 g/L
Hazards
NFPA 704

NFPA 704.svg

1
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0
 
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Galactose (from the Greek stem γάλακτ– galakt–, "milk") is a sugar. It has almost the same chemical structure as glucose. Large amounts of pure galactose do not exist in nature. Instead, galactose is usually found with glucose in lactose, a sugar found in milk and other milk products. After lactose is digested and absorbed, galactose arrives in the liver. There it is changed into either glucose or glycogen.