The molecule is the amino hexadecasaccharide obtained when four molecules of the repeating tetrasacchride unit from Shigella dysenteriae O-specific polysaccharide are joined via alpha-(1->3) linkages. It has a role as a hapten.
N-[(2R,3R,4R,5S,6R)-4-[(2S,3R,4S,5R,6R)-3-[(2S,3R,4R,5S,6S)-4-[(2S,3R,4R,5S,6S)-4-[(2R,3R,4R,5S,6R)-3-acetamido-4-[(2S,3R,4S,5R,6R)-3-[(2S,3R,4R,5S,6S)-4-[(2S,3R,4R,5S,6S)-4-[(2R,3R,4R,5S,6R)-3-acetamido-4-[(2S,3R,4S,5R,6R)-3-[(2S,3R,4R,5S,6S)-4-[(2S,3R,4R,5S,6S)-4-[(2R,3R,4R,5S,6R)-3-acetamido-4-[(2S,3R,4S,5R,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-hydroxy-6-(hydroxymethyl)-2-[(2R,3R,4R,5S,6S)-2,3,5-trihydroxy-6-methyloxan-4-yl]oxyoxan-3-yl]acetamide