D(+)-Xylose Property

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. 

Sealed in dry,Room Temperature

solubility 

H₂O: 1 M at 20 °C, clear, colorless

form 

Fine Crystalline Powder

pka

pKa (18°): 12.14

color 

White

Specific Gravity

1.535

Odor

Odorless

PH Range

4.5 - 6.0

PH

4.0-6.0 (25℃, 1M in H2O)

Odor Type

smoky

optical activity

[α]20/D +20.0±1°, 10 hr, c = 10% in H2O

Water Solubility 

soluble

Sensitive 

Hygroscopic

λmax

λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05

Merck 

14,10087

BRN 

1562108

Stability:

Stable. Incompatible with strong oxidizing agents.

LogP

-1.98

CAS DataBase Reference

58-86-6(CAS DataBase Reference)

NIST Chemistry Reference

D-Xylose(58-86-6)

EPA Substance Registry System

D-Xylose (58-86-6)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

24/25-36-26

WGK Germany 

2

RTECS 

ZF2285000

F 

3

Hazard Note 

Irritant

TSCA 

Yes

HS Code 

29400090

Hazardous Substances Data

58-86-6(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

D(+)-Xylose Chemical Properties,Usage,Production

Chemical Properties

white crystals or powder

Chemical Properties

D-Xylose is nearly odorless and has a smoky flavor. This compound is an aldopentose monosaccharide.

Uses

D-Xylose is used in diagnostic malabsorption tests as well as in the production of Furfural.

Uses

sweetener, pharmaceutical intermediate

Uses

In tanning, dyeing, and as a diabetic food.

Definition

ChEBI: The pyranose form of D-xylose.

Definition

A SUGAR that has five carbon atoms in its molecules.

brand name

Xylo-Pfan (Savage).

General Description

Xylose is a five-carbon sugar that contributes to lignocellulose in plants. Xylose is predominantly found in hardwoods and agricultural residues.

Biochem/physiol Actions

Estimation of xylose in the urine after oral administration, is useful in diagnosing absorption of carbohydrates and malabsorption of non-pancreatic molecules. Xylose plays a significant role in the biologically conversion of plant biomass to fuels and chemicals.

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].