D-XYLOSE

Synonyms. D-Xylose; (D)-Xylose; Xylose; (+)-Xylose; 2,3,4,5-Tetrahydroxypentanal; Wood sugar; D-xylopyranose; Xylomed; D-xylopentose; (3R,4S,5R)-oxane-2,3,4,5-tetrol;

D-XYLOSE

 

PRODUCT IDENTIFICATION

CAS RN

58-86-6

EINECS RN

 200-400-7

FORMULA

 HOCH2(CH(OH))3CHO

MOLE WEIGHT

 150.13

H.S CODE

 2940.00.2000

SMILES

 O[C@@H]1[C@H]([C@H](OC[C@H]1O)O)O

CLASSIFICATION

Carbohydrate

EXTRA NOTES

 FEMA No. 3606
Other RN: 133-56-2, 141492-19-5

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

white crystalline powder

MELTING POINT

148 ~ 153 C

BOILING POINT

  

DENSITY

 

SOLUBILITY IN WATER

Soluble

SOLVENT SOLUBILITY Soluble in pyridine and hot alcohol

VAPOR DENSITY

 

log P(octanol-water)

 -1.98

AUTOIGNITION TEMP

  
pKa

12.14

REFRACTIVE INDEX

 

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 0; Flammability: 0; Instability: 0;

 

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Xylose

Google Scholar Search - D-Xylose

Drug Information Portal (U.S. National Library of Medicine) - D-Xylose

PubChem Compound Summary - D-Xylose

Drug Bank -  D-Xylose

KEGG (Kyoto Encyclopedia of Genes and Genomes) - D-Xylose

http://www.ebi.ac.uk/ - D-Xylose

http://www.ncbi.nlm.nih.gov/ - D-Xylose

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - D-Xylose

http://www.megazyme.com/
In nature, D-xylose occurs mainly in the polysaccharide form as xylan, arabinoxylan, glucuronoarabinoxylan, xyloglucan and xylogalacturonan. Mixed linkage D-xylans are also found in certain seaweed species and a similar polysaccharide is thought to make up the backbone of psyllium gum. Free D-xylose is found in guava, pears, blackberries, loganberries, raspberries, aloe vera gel, kelp, echinacea, boswellia, broccoli, spinach, eggplant, peas, green beans, okra, cabbage and corn. In humans, D-xylose is used in an absorption test to help diagnose problems that prevent the small intestine from absorbing nutrients, vitamins and minerals in food. D-Xylose is normally easily absorbed by the intestine. When problems with absorption occur, D-xylose is not absorbed and blood and urine levels are low. A D-xylose test can help to determine the cause of a child’s failure to gain weight, especially when the child seems to be eating enough food. If in a polysaccharide, the ratio of D-xylose to other sugars etc. is known, then the amount of the polysaccharide can be quantitated from this knowledge plus the determined concentration of D-xylose in an acid hydrolysate. Xylans are a major portion of the polysaccharides that could potentially be hydrolysed to fermentable sugar for biofuel production.

 

SALES SPECIFICATION

APPEARANCE

white crystalline powder

PURITY 

99.0% min

WATER

0.3% max (K.F)

HEAVY METALS

10ppm max

SPECIFIC ROTATION

+18° ~ +21° (c=10 in H2O/NH3)

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

Not regulated

HAZARD SYMBOL

  
PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

May cause eye and skin irritation. May cause respiratory and digestive tract irritation. Target Organs:Not known

GHS

  

SIGNAL WORD

Not classified

PICTOGRAMS

 

HAZARD STATEMENTS

None

P STATEMENTS

None

EC DIRECTIVES

 

HAZARD CODES

 

RISK PHRASES

  

SAFETY PHRASES

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