61339

D-Lactose monohydrate

≥99% (HPLC), BioUltra

• Sinónimos: β-D-Gal-(1→4)-D-Glc, 4-O-β-D-Galactopyranosyl-D-glucose, Milk sugar
• Fórmula empírica (notación de Hill): C₁₂H₂₂O₁₁ · H₂O
• Número de CAS: 64044-51-5
• Peso molecular: 360.31
• Beilstein: 3768231
• Número CE: 200-559-2
• Número MDL: MFCD00166994
• Código UNSPSC: 12352201
• ID de la sustancia en PubChem: 329759435
• NACRES: NA.25

Propiedades

• Línea del producto: BioUltra
• Nivel de calidad: 100
• Ensayo: ≥99% (HPLC)
• Formulario: solid
• actividad óptica: [α]20/D +53±1°, 22 hr, c = 10% in H₂O
• impurezas: insoluble matter, passes filter test
• residuo de ign.: ≤0.05% (as SO₄)
• color: colorless
• pH: 3.5-6.0 (25 °C, 0.5 M in H₂O)
• solubilidad: H₂O: 0.5 M at 20 °C, clear, colorless
• trazas de anión: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• trazas de catión: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 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; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 0.5 M in H₂O
• Absorción UV: λ: 260 nm A_max: 0.02; λ: 280 nm A_max: 0.02
• cadena SMILES: O.OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O
• InChI: 1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8-,9-,10+,11+,12-;/m0./s1
• Clave InChI: HBDJFVFTHLOSDW-XBLONOLSSA-N

Descripción

Aplicación

D-Lactose is a disaccharide of D-glucose and D-galactose units found as a major sugar in milk. D-Lactose is used for the culture of lactic acid metabolizing bacteria, lactic acid bacteria. D-Lactose is used to identify and characterized galectins.

Acciones bioquímicas o fisiológicas

Lactose is a dissacharide formed by the condensation of one galactose and one glucose molecule. Lactose is the major sugar in the milk of most species, typically present between 2-8%. The enzyme lactase hydrolyzes lactose to its constituent monosaccharides. In neonates, glucose released via the action of lactase is a major energy source.

Otras notas

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

Component of the liquid stationary phase in the GLC separation of nitroxylene and xylenol isomers

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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)