3-Deoxy-D-manno-oct-2-ulosonic acid Tags: Chemical Compound, Chemical Substance.3-Deoxy-D-manno-oct-2-ulosonic acid or KDO is an ulosonic acid of a 2-ketooctose which is used by bacteria in the synthesis of lipopolysaccharides. The D-manno prefix indicates that four chiral centers have the same configuration as D-mannose. thumbnail IUPAC name (4R5R6R7R)-45678-pentahydroxy-2-oxooctanoic acid Learn more... Loading...