Merck
All Photos(1)

48260

Millipore

D-(+)-Galactose

suitable for microbiology, ≥99.0%

Synonym(s):
Galactose
Empirical Formula (Hill Notation):
C6H12O6
CAS Number:
Molecular Weight:
180.16
Beilstein:
1724619
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.85

Nível de qualidade

200

teor

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

forma

powder

atividade óptica

[α]20/D +80±1°, 24 hr, c = 5% in H2O

resíduo de ignição

≤0.1% (as SO4)

perda

≤0.1% loss on drying

pf

167-170 °C (dec.)
168-170 °C (lit.)

solubilidade

H2O: 0.1 g/mL, clear, colorless

traços de ânion

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

traços de cátion

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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Descrição geral

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.

Aplicação

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

Código de classe de armazenamento

11 - Combustible Solids

WGK

WGK 3

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

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Certificate of Origin

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