3-Deoxy-d-manno-oct-2-ulosonic acid (ketodeoxyoctonic acid; KDO; IUPAC symbol Kdo) is an ulosonic acid of a 2-ketooctose which is used by bacteria in the synthesis of lipopolysaccharides.^[1] The d-manno prefix indicates that the four chiral centers have the same configuration as d-mannose.

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3-Deoxy-d-manno-oct-2-ulosonic acid

Names
IUPAC name (4R,5R,6R,7R)-4,5,6,7,8-pentahydroxy-2-oxooctanoic acid
Other names 2-Oxo-3-deoxy-d-mannooctonic acid 2-Keto-3-Deoxy-d-manno-octonate 2-Keto-3-deoxy-d-mannooctanoic acid 3-Deoxy-d-manno-2-octulosonic acid 3-Deoxy-d-manno-octulosonic acid
Identifiers
CAS Number	10149-14-1 (linear form) Y
3D model (JSmol)	Interactive image Interactive image
Abbreviations	D-KDO; KDO; dOclA
ChEBI	CHEBI:32817 Y
ChemSpider	106511 Y
PubChem CID	445569
UNII	ZWK96OG89F (linear form) Y
InChI InChI=1S/C8H14O8/c9-2-5(12)7(14)6(13)3(10)1-4(11)8(15)16/h3,5-7,9-10,12-14H,1-2H2,(H,15,16)/t3-,5-,6-,7-/m1/s1 Y Key: KYQCXUMVJGMDNG-SHUUEZRQSA-N Y InChI=1/C8H14O8/c9-2-5(12)7(14)6(13)3(10)1-4(11)8(15)16/h3,5-7,9-10,12-14H,1-2H2,(H,15,16)/t3-,5-,6-,7-/m1/s1 Key: KYQCXUMVJGMDNG-SHUUEZRQBC
SMILES O[C@@H]([C@@H]([C@@H](CC(C(O)=O)=O)O)O)[C@H](O)CO O=C(O)C(=O)C[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO
Properties
Chemical formula	C8H14O8
Molar mass	238.192 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

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