48260

D-(+)-Galactosa

suitable for microbiology, ≥99.0%

• Sinónimos: Galactosa
• Fórmula empírica (notación de Hill): C₆H₁₂O₆
• Número de CAS: 59-23-4
• Peso molecular: 180.16
• Beilstein: 1724619
• Número CE: 200-416-4
• Número MDL: MFCD00151230
• Código UNSPSC: 41106212
• ID de la sustancia en PubChem: 329757362
• NACRES: NA.85

Propiedades

• Nivel de calidad: 200
• Ensayo: ≥99.0% (sum of enantiomers, HPLC); ≥99.0%
• Formulario: powder
• actividad óptica: [α]20/D +80±1°, 24 hr, c = 5% in H₂O
• residuo de ign.: ≤0.1% (as SO₄)
• pérdida: ≤0.1% loss on drying
• mp: 167-170 °C (dec.); 168-170 °C (lit.)
• solubilidad: H₂O: 0.1 g/mL, clear, colorless
• trazas de anión: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• trazas de catión: 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
• aplicaciones: microbiology
• cadena SMILES: 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
• Clave InChI: GZCGUPFRVQAUEE-KCDKBNATSA-N

Descripción

Descripción general

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.

Aplicación

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

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Gloves, type N95 (US)