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| beta-D-(-)-Arabinose Basic information |
| beta-D-(-)-Arabinose Chemical Properties |
| Melting point | 156-160 °C | | Boiling point | 191.65°C (rough estimate) | | density | 1.1897 (rough estimate) | | refractive index | -104 ° (C=10, H2O) | | storage temp. | Inert atmosphere,Store in freezer, under -20°C | | pka | pK1: 12.34 (25°C) | | form | Solid | | color | White powder | | Odor | Odorless | | optical activity | [α]20/D 104±2.0°, 24 hr, c = 10% in H2O | | Water Solubility | Soluble in water. | | BRN | 1723079 | | InChIKey | SRBFZHDQGSBBOR-ZRMNMSDTSA-N | | CAS DataBase Reference | 10323-20-3(CAS DataBase Reference) | | NIST Chemistry Reference | D-Arabinose(10323-20-3) | | EPA Substance Registry System | D-Arabinose (10323-20-3) |
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ALFA
| English |
| beta-D-(-)-Arabinose Usage And Synthesis |
| Chemical Properties | white crystalline compound | | Uses | Isotope labelled analogue of D-Arabinose (A764175), an inhibitor of the enzyme glucose dehydrogenase. | | Uses | pharmaceutical intermediate; food additive | | Uses | D-(-)-Arabinose is used in culture media for some bacteria. It serves as a component of biopolymers such as hemicellulose and pectin. In the synthetic biology laboratory, it is employed as a reversible switch for protein expression under the Pbad promoter (i.e. part of plasmids) in E. coli. Further, it acts as an inhibitor of the enzyme glucose dehydrogenase. In addition to this, it is used as a pharmaceutical intermediate and food additive. | | Purification Methods | Crystallise D-(-)-arabinose three times from EtOH, dry it in vacuo at 60o for 24hours and store it in a vacuum desiccator. It also crystallises from a mixture of H2O/MeOH/EtOH with m 158-160o, or H2O with m 160-161o. [Whistler & Schweiger J Am Chem Soc 81 5190 1959, Fletcher et al. J Am Chem Soc 72 4546 1950, Beilstein 1 IV 4215, see Angyal Adv Carbohydrate Chem Biochem 42 15 1984 for ratio of anomers in solution.] |
| beta-D-(-)-Arabinose Preparation Products And Raw materials |
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