The molecule is a polysaccharide that is a branched dodecasaccharide consisting of three repeating tetrasaccharide units; reported to be a possible epitope of the O-antigen polysaccharide in Salmonella.
(2R,3R,4S,5R,6S)-5-[(2R,3S,4S,5R,6R)-4-[(2R,3R,5R,6R)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-[(2R,3R,4S,5S,6R)-4-[(2S,3R,4S,5R,6S)-5-[(2R,3S,4S,5R,6R)-4-[(2R,3R,5R,6R)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3-[(2R,3R,4S,5S,6R)-4-[(2S,3R,4S,5R,6S)-5-[(2R,3S,4S,5R,6R)-4-[(2R,3R,5R,6R)-3,5-dihydroxy-6-methyloxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)-3-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3,4-dihydroxy-6-methyloxan-2-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,4-dihydroxy-6-methyloxan-2-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-methyloxane-2,3,4-triol