|CAS number||, (D) , (L)|
|Jmol-3D images||Image 1
|Molar mass||150.13 g mol−1|
|Appearance||Colorless crystals as prisms or needles|
|Density||1.585 g/cm3 (20 ºC)|
|Melting point||164 to 165 °C (327 to 329 °F; 437 to 438 K)|
|Solubility in water||Soluble|
|Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)|
|(what is: / ?)|
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.
Arabinose is used as a culture medium for certain bacteria.
- For sugars, the D/L nomenclature does not refer to the molecule's optical rotation properties but to its structural analogy to glyceraldehyde.