The molecule is a ketoaldopentose and deoxypentose that is 2-oxopentanal that is substituted at positions 4 and 5 by hydroxy groups (the 4S) enantiomer). It is a 2-oxo aldehyde, a primary alcohol, a secondary alcohol, a glycol, a ketoaldopentose and a deoxypentose.
(4S)-4,5-dihydroxy-2-oxopentanal