The molecule is a polyprenyl phospho oligosaccharide that is a tetrasaccharide consisting of one glucuronic acid, one mannose and two glucose residues linked via a diphospho group to undecaprenol. It is a conjugate acid of a beta-D-GlcA-(1->2)-alpha-D-Man-(1->3)-beta-D-Glc-(1->4)-alpha-D-Glc-1-diphospho-ditrans,polycis-undecaprenol(3-).
(2S,3S,4S,5R,6R)-6-[(2R,3S,4S,5S,6R)-2-[(2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6R)-4,5-dihydroxy-6-[hydroxy-[hydroxy-[(2Z,6Z,10Z,14Z,18Z,22Z,26Z,30Z,34E,38E)-3,7,11,15,19,23,27,31,35,39,43-undecamethyltetratetraconta-2,6,10,14,18,22,26,30,34,38,42-undecaenoxy]phosphoryl]oxyphosphoryl]oxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid