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48260

Millipore

D-(+)-Galactose

suitable for microbiology, ≥99.0%

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Synonym(s):
Galactose
Empirical Formula (Hill Notation):
C6H12O6
CAS Number:
59-23-4
Molecular Weight:
180.16
Beilstein:
1724619
EC Number:
200-416-4
MDL number:
MFCD00151230
UNSPSC Code:
41106212
PubChem Substance ID:
329757362
NACRES:
NA.85

Quality Level

200

Assay

≥99.0% (sum of enantiomers, HPLC)
≥99.0%

form

powder

optical activity

[α]20/D +80±1°, 24 hr, c = 5% in H2O

ign. residue

≤0.1% (as SO4)

loss

≤0.1% loss on drying

mp

167-170 °C (dec.)
168-170 °C (lit.)

solubility

H2O: 0.1 g/mL, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.1 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

application(s)

microbiology

SMILES string

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

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

InChI key

GZCGUPFRVQAUEE-KCDKBNATSA-N

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General description

Galactose, a member of a group of carbohydrates known as simple sugars (monosaccharides). It is usually found in nature combined with other sugars, as, for example, in lactose (milk sugar). Galactose is also found in complex carbohydrates (see polysaccharide) and in carbohydrate-containing lipids called glycolipids. It is used as a source of carbon and contributes to energy metabolism via its conversion to glucose by the enzymes that constitute the Leloir pathway. It is used in various media for the cultivation of bacteria and fungi. The metabolic steps of D-galactose utilization are catalysed by the GalK (galactokinase), GalT (galactose 1-phosphateuridylyl transferase), and GalE (UDP-galactose-4-epimerase) proteins.

Application

Galactose can be used as a carbohydrate source for diverse organisms for example lactobacilli, coliforms, Salmonella and streptococci. It is a simple monosaccharide that serves as an energy and carbon source for the cultivation of various of bacteria, fungi and yeasts in many industries such as food, pharmaceuticals and cosmetics

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品

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Base Ingredients of Microbiology Media

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.

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