d-2-deoxyribose

from The Collaborative International Dictionary of English v.0.48

deoxyribose \deoxyribose\ n.
   a pentose ({C5H10O4}) in which one of the hydroxyl groups of
   ribose has been replaced by a hydrogen. In deoxyribonucleic
   acids, the deoxyribose is {D-2-deoxyribose}, in which the
   hydroxyl at the 2 position of ribose is the one which is
   replaced by hydrogen.
   [PJC]