Other grades of this product :
| L-Arabinopyranose Basic information |
| 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 | | pka | 12.26±0.70(Predicted) | | form | Fine Crystalline Powder | | 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) |
| 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. | | 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.] |
| L-Arabinopyranose Preparation Products And Raw materials |
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