Continued from 2-Carb-18
Alditols are named by changing the suffix '-ose' in the name of the corresponding aldose into '-itol'.
If the same alditol can be derived from either of two different aldoses, or from an aldose or a ketose, preference is ruled by 2-Carb-2.1 or 2-Carb-2.2.2 as appropriate.
D-Arabinitol (Ara-ol) not D-lyxitol
D-Glucitol (Glc-ol) not L-gulitol
(the trivial name sorbitol is not recommended)
The trivial names fucitol and rhamnitol are allowed for the alditols corresponding to the 6-deoxy sugars fucose and rhamnose.
L-Rhamnitol (L-Rha-ol) or 1-deoxy-L-mannitol
2-Carb-19.2. meso Forms
Alditols that are symmetric and therefore optically inactive - the meso forms - can be designated by the prefix meso-.
The prefix D or L must be given when a derivative of a meso form has become asymmetric by substitution. It is also necessary to define the configurational prefixes as D or L in the case where there are more than four contiguous asymmetric carbon atoms.
Return to Carbohydrates home page.