The molecule is a trimeric glycoside phosphate comprising three beta-D-ribosyl-(1->1)-D-ribitol-5-phosphate repeating units that are joined to each other by phosphodiester linkages. It derives from a ribitol.
[(2R,3S,4S)-5-[(2R,3R,4S,5R)-4-[[(2R,3S,4S)-5-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-2,3,4-trihydroxypentoxy]-hydroxyphosphoryl]oxy-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-2,3,4-trihydroxypentyl] [(2R,3S,4R,5R)-4-hydroxy-2-(hydroxymethyl)-5-[(2S,3S,4R)-2,3,4-trihydroxy-5-phosphonooxypentoxy]oxolan-3-yl] hydrogen phosphate