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D(+)-Xylose

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D(+)-Xylose Basic information
D(+)-Xylose Chemical Properties
  • Melting point:154-158 °C(lit.)
  • alpha 20 º (c=10, H2O)
  • Boiling point:191.65°C (rough estimate)
  • Density 1.525
  • FEMA 3606 | D-XYLOSE
  • refractive index 20 ° (C=10, H2O)
  • Flash point:> 100°(212°F)
  • storage temp. Store at RT.
  • solubility H2O: 1 M at 20 °C, clear, colorless
  • pkapKa (18°): 12.14
  • form Fine Crystalline Powder
  • color White
  • Specific Gravity1.535
  • OdorOdorless
  • PH4.0-6.0 (25℃, 1M in H2O)
  • PH Range4.5 - 6.0
  • optical activity[α]20/D +20.0±1°, 10 hr, c = 10% in H2O
  • Water Solubility soluble
  • λmaxλ: 260 nm Amax: 0.05
    λ: 280 nm Amax: 0.05
  • Sensitive Hygroscopic
  • Merck 14,10087
  • BRN 1562108
  • Stability:Stable. Incompatible with strong oxidizing agents.
  • CAS DataBase Reference58-86-6(CAS DataBase Reference)
  • NIST Chemistry ReferenceD-Xylose(58-86-6)
  • EPA Substance Registry SystemD-Xylose (58-86-6)
Safety Information
MSDS
D(+)-Xylose Usage And Synthesis
  • Chemical Propertieswhite crystals or powder
  • Chemical PropertiesD-Xylose is nearly odorless and has a smoky flavor.
  • UsesD-Xylose is used in diagnostic malabsorption tests as well as in the production of Furfural.
  • Usessweetener, pharmaceutical intermediate
  • UsesAn aldopentose monosaccharide.
  • UsesIn tanning, dyeing, and as a diabetic food.
  • DefinitionA SUGAR that has five carbon atoms in its molecules.
  • Definitionpentose: A sugar that has five carbonatoms per molecule.
  • DefinitionChEBI: The pyranose form of D-xylose.
  • brand nameXylo-Pfan (Savage).
  • Purification Methods-D(+)-Xylose forms needles or prisms (which have a very sweet taste) by slow crystallisation from aqueous 80% EtOH or absolute EtOH, which are then dried at 60o in vacuo over P2O5. Store it in a vacuum desiccator over CaSO4. 1Gram dissolves in 0.8mL H2O. [Bragg & Hough J Chem Soc 4347 1957, Hudson & Yanovsky J Am Chem Soc 39 1029 1917, Monroe J Am Chem Soc 41 1002 1919, Beilstein 1 IV 4223.] In D2O at 31o, 1H NMR showed the following ratios: -pyranose (36.5), -pyranose (63), -furanose + -furanose (~1) [Angyal Adv Carbohydr Chem 42 15 1984, Angyal & Pickles Aust J Chem 25 1711 1972].
D(+)-Xylose Preparation Products And Raw materials
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