[(2R,3R)-2,3-dihydroxy-4-oxobutyl] phosphate [(2R,3R)-2,3-dihydroxy-4-oxo-butyl] phosphate [(2R,3R)-2,3-dihydroxy-4-keto-butyl] phosphate (2R,3R)-2,3-dihydroxy-4-oxobutyl phosphate 4-O-phosphonato-D-erythrose CHEBI:16897 D-erythrose 4-phosphate(2-)