c5h10o5

from The Collaborative International Dictionary of English v.0.48

Pentose \Pen"tose\, n. [Penta- + -ose.] (Chem.)
   Any of a group of sugars of the formula {C5H10O5}, such as as
   {arabinose} or {ribose}; -- so called from the five carbon
   atoms in the molecule. They are not fermented by yeast.
   [Webster 1913 Suppl.]

from The Collaborative International Dictionary of English v.0.48

Xylose \Xy"lose\, n. [Pref. xylo- + -ose.] (Chem.)
   An unfermentable sugar of the pentose class, {C5H10O5},
   formed by the hydrolysis of xylan; wood sugar.
   [Webster 1913 Suppl.]

from The Collaborative International Dictionary of English v.0.48

Arabinose \Ar"a*bin*ose`\, n. (Chem.)
   A sugar of the composition {C5H10O5}, obtained from cherry
   gum by boiling it with dilute sulphuric acid.
   [1913 Webster]

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