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Merck

G0750

D-(+)-Galactose

≥99% (HPLC)

D-(+)-Galactose

Synonym(s):

Galactose

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About This Item

Empirical Formula (Hill Notation):
C6H12O6
CAS Number:
59-23-4
Molecular Weight:
180.16
UNSPSC Code:
12352201
NACRES:
NA.21
PubChem Substance ID:
24895021
EC Number:
200-416-4
Beilstein/REAXYS Number:
1724619
MDL number:
MFCD00151230

Key Documents

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Product Name

D-(+)-Galactose, ≥99% (HPLC)

InChI key

GZCGUPFRVQAUEE-KCDKBNATSA-N

InChI

1S/C6H12O6/c7-1-3(9)5(11)6(12)4(10)2-8/h1,3-6,8-12H,2H2/t3-,4+,5+,6-/m0/s1

SMILES string

OC[C@@H](O)[C@H](O)[C@H](O)[C@@H](O)C=O

biological source

bovine (Ruminant- Cow, Ox, Buffalo)

assay

≥99% (HPLC)

form

powder

technique(s)

HPLC: suitable

impurities

≤0.1% glucose

color

white

useful pH range

5.0-7 (25 °C, 180 g/L)

mp

168-170 °C (lit.)

solubility

H2O: soluble 100 mg/mL, clear, colorless

storage temp.

room temp

Quality Level

300

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Show Differences

1 of 4

This Item
G640448260G5388
D-(+)-Galactose ≥99% (HPLC)

Sigma-Aldrich

G0750

D-(+)-Galactose

D-(+)-Galactose BioXtra, ≥99% (HPLC)

Sigma-Aldrich

G6404

D-(+)-Galactose

D-(+)-Galactose suitable for microbiology, ≥99.0%

Millipore

48260

D-(+)-Galactose

D-(+)-Galactose ≥99% (HPLC), BioReagent, suitable for cell culture, suitable for insect cell culture

Sigma-Aldrich

G5388

D-(+)-Galactose

assay

≥99% (HPLC)

assay

≥99% (HPLC)

assay

≥99.0% (sum of enantiomers, HPLC)

assay

≥99% (HPLC)

biological source

bovine (Ruminant- Cow, Ox, Buffalo)

biological source

bovine milk

biological source

-

biological source

-

technique(s)

HPLC: suitable

technique(s)

HPLC: suitable

technique(s)

-

technique(s)

cell culture | insect: suitable, cell culture | mammalian: suitable

solubility

H2O: soluble 100 mg/mL, clear, colorless

solubility

H2O: 1 M, clear, colorless

solubility

H2O: 0.1 g/mL, clear, colorless

solubility

H2O: 100 mg/mL

Quality Level

300

Quality Level

200

Quality Level

200

Quality Level

200

form

powder

form

powder

form

powder

form

powder

Application

Galactose has been used:
  • as a component of galactosyltransferase labeling buffer.[1]
  • as a supplement in MRS broth for the growth of thermophilic lactobacilli[2]
  • to induce the expression of uncoupling protein (UCP) in yeast transformants[3]

Biochem/physiol Actions

Galactose is a simple monosaccharide that serves as an energy source and as an essential component of glycolipids and glycoproteins. Galactose contributes to energy metabolism via its conversion to glucose by the enzymes that constitute the Leloir pathway. Defects in the genes encoding these proteins lead to the metabolic disorder galactosemia.

Other Notes

To gain a comprehensive understanding of our extensive range of Monosaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF7279V
BCCN4976
WXBF6156V
WXBF5152V
WXBF3331V

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K W Turner et al.
Applied and environmental microbiology, 45(6), 1932-1934 (1983-06-01)
The ability to ferment galactose is a major characteristic which can be used to differentiate Lactobacillus helveticus (galactose positive) from Lactobacillus lactis and Lactobacillus bulgaricus (galactose negative). In milk cultures, galactose-positive strains produced d- and l-lactic acid with little galactose
D L Murdza-Inglis et al.
The Journal of biological chemistry, 269(10), 7435-7438 (1994-03-11)
The uncoupling protein is one of a family of mitochondrial transport proteins involved in energy metabolism. It dissipates oxidative energy to generate heat, either by catalyzing proton transport directly or by catalyzing fatty acid anion transport, thus enabling fatty acids
Zu-Hong He et al.
Redox biology, 28, 101364-101364 (2019-11-16)
Inflammation is a self-defense response to protect individuals from infection and tissue damage, but excessive or persistent inflammation can have adverse effects on cell survival. Many individuals become especially susceptible to chronic-inflammation-induced sensorineural hearing loss as they age, but the
Inge E Krabbendam et al.
Cell death & disease, 11(4), 263-263 (2020-04-25)
Metabolic flexibility is an essential characteristic of eukaryotic cells in order to adapt to physiological and environmental changes. Especially in mammalian cells, the metabolic switch from mitochondrial respiration to aerobic glycolysis provides flexibility to sustain cellular energy in pathophysiological conditions.
Hwa-Young Lee et al.
Redox biology, 37, 101727-101727 (2020-10-04)
Oxidative stress attributable to the activation of a Nox4-containing NADPH oxidase is involved in aging-associated vascular dysfunction. However, the Nox4-induced signaling mechanism for the vascular alteration in aging remains unclear. In an aged aorta, the expression of Nox4 mRNA and
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Questions

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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