D-GALACTOSE

Item No.: 00147
D-Galactose is a monosaccharide sugar that serves as an energy source and glycosylation component. It is a C-4 epimer of glucose and often used as a source of carbon in culture media.Please leave your infomation, we will send some sample or case to you.
  • TYPE:
    SWEETENERS
  • CAS:
    59-23-4
  • EINECS:
    200-416-4
  • HS CODE:
    29400090
Description Specification Applications
Description
PRODUCTS INFORMATION
D-Galactose is a monosaccharide sugar that serves as an energy source and glycosylation component. It is a C-4 epimer of glucose and often used as a source of carbon in culture media. Galactose is a component of the disaccharide lactose and released upon hydrolysis by β-galactosidase enzymes. It is converted to glucose via the Leloir pathway or metabolized via an alternative pathway, such as the DeLey-Doudoroff pathway.
BASIC INFORMATION AND CHEMICAL PROPERTIES
Form White powder
MF C6H12O6
MW 180.16
Melting point 168-170 °C(lit.)
Boiling point 232.96°C (rough estimate)
Density 1.5 g/cm3
Refractive index 80 ° (C=10, H2O)
Pka pK1:12.35 (25°C)
Storage temp. room temp
Specification
Items Standard
Appearance White crystals powder
Specific rotation{a}D20 78.5°~81.0°
Loss on drying ≤0.5
Residue on ignition ≤0.5
ChlorideCI ≤0.003
Sulfate ≤0.00
Heavy metals pb ≤0.001
Assay ≥98.0
Applications

Galactose has been used:
as a component of galactosyltransferase labeling buffer.
as a supplement in MRS broth for the growth of thermophilic lactobacilli.
to induce the expression of uncoupling protein (UCP) in yeast transformants.

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