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L-Arabinopyranose

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L-Arabinopyranose Basic information

Product Name:
L-Arabinopyranose
Synonyms:
  • ARABITOL, L-(-)-(RG)
  • L-ARABINOSE extrapure
  • (2R,3R,4S,5S)-oxane-2,3,4,5-tetrol
  • L-Arabinose 98%
  • L-(+)-Arabinose, L-arabinose
  • L-Arabinopyranose
  • l-[1-13C]arabinose
  • l-[2-13C]arabinose
CAS:
87-72-9
MF:
C5H10O5
MW:
150.13
EINECS:
201-767-6
Product Categories:
  • Sugars, Carbohydrates & Glucosides
  • Inhibitors
  • Dextrins、Sugar & Carbohydrates
  • Carbohydrates & Derivatives
  • carbohydrate
  • Food Additives
Mol File:
87-72-9.mol
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L-Arabinopyranose Chemical Properties

Melting point:
160-163 °C(lit.)
alpha 
103 º (c=5, H2O)
Boiling point:
191.65°C (rough estimate)
Density 
1.1897 (rough estimate)
refractive index 
1.3920 (estimate)
storage temp. 
Inert atmosphere,Room Temperature
solubility 
Methanol (Slightly), Water (Sparingly)
form 
Fine Crystalline Powder
pka
12.26±0.70(Predicted)
color 
White
Water Solubility 
soluble
Merck 
14,761
BRN 
1723085
CAS DataBase Reference
87-72-9(CAS DataBase Reference)
NIST Chemistry Reference
Arabinose(L)(87-72-9)
EPA Substance Registry System
L-Arabinopyranose (87-72-9)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
24/25-36-26
WGK Germany 
3
3-10
TSCA 
Yes
HS Code 
29400000

MSDS

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L-Arabinopyranose Usage And Synthesis

Chemical Properties

White to off white crystalline powder

Uses

A base component of hemicellulose and pectin, critical biopolymers.

Uses

L-(+)-Arabinose is used to identify and differentiate and characterize pentose sugar isomerase. It is also used as the carbon source in microbial culture. It is involved in the bioproduction of L-ribose. It finds application in the production of savory reaction flavors. Its derivatives are used in the development of antiviral agents such as nucleoside. It acts as a base component of hemicellulose and pectin.

Definition

ChEBI: L-arabinopyranose is the six-membered ring form of L-arabinose. It has a role as an Escherichia coli metabolite and a mouse metabolite.

Purification Methods

beta-L-(+)-Arabinose is recrystallised slowly, twice, from 80% aqueous EtOH, then dried under vacuum over P2O5. It can also be purified by heating the arabinose (200g) with glacial acetic acid (300mL) on a boiling water bath for 45minutes, cooling, filtering, washing with 95% EtOH (500mL) in four portions and drying at 56-60o over P2O5. It has been recrystallised from 5times its weight of 76% EtOH using charcoal (10g) to yield 127g, m 155-157o, [] 20D +190.6o and mutarotating to +104o (c 4, H2O). [Anderson & Sands Org Synth Coll Vol I 67 1941, Wolfrom & Christian J Am Chem Soc 48 3172 1926, Beilstein 1 IV 4217.]

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