The molecule is an oligosaccharide derivative consisting of -D-GalNAc-ol at the reducing end with two[D-GalNAc-(1->4)-[L-Fuc-(1->3)]-D-GlcNAc] moieties attached via (1->3)- and (1->6)-linkages. It has a role as a carbohydrate allergen.
N-[(3R,4R,5R,6R)-2-[(2R,3S,4R,5R)-5-acetamido-6-[(2R,3S,4R,5S)-5-acetamido-4-[(3R,4R,5S,6R)-3-acetamido-5-[(3R,4R,5R,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-(hydroxymethyl)-4-[(3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-2,3,6-trihydroxyhexoxy]-2-(hydroxymethyl)-4-[(3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide