| Arabinose | |
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Arabinose |
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Other names
Pectinose |
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| Identifiers | |
| CAS number | 147-81-9 , 10323-20-3 (D) , 5328-37-0 (L) |
| PubChem | 5460291 |
| ChemSpider | 59687 |
| EC-number | 205-699-8 |
| ChEBI | CHEBI:46983 |
| Jmol-3D images | Image 1 Image 2 |
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| Properties[1] | |
| Molecular formula | C5H10O5 |
| Molar mass | 150.13 g mol−1 |
| Appearance | Colorless crystals as prisms or needles |
| Density | 1.585 g/cm3 (20 ºC) |
| Melting point |
164-165 °C, 437-438 K, 327-329 °F |
| Solubility in water | Soluble |
| Related compounds | |
| Related aldopentoses | Ribose Xylose Lyxose |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Arabinose is an aldopentose – a monosaccharide containing five carbon atoms, and including an aldehyde (CHO) functional group.
For biosynthetic reasons, most saccharides are almost always more abundant in nature as the "D"-form, or structurally analogous to D-glyceraldehyde.[note 1] However, L-arabinose is in fact more common than D-arabinose in nature and is found in nature as a component of biopolymers such as hemicellulose and pectin. The L-arabinose operon is a very important operon in molecular biology and bioengineering.
A classic method for the organic synthesis of arabinose from glucose is the Wohl degradation.[2]
| D-Arabinose | |
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α-D-Arabinofuranose |
β-D-Arabinofuranose |
α-D-Arabinopyranose |
β-D-Arabinopyranose |
Contents |
Arabinose gets its name from gum arabic, from which it was first isolated.[3]
Arabinose is used as a culture medium for certain bacteria.
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