The molecule is an amino trisaccharide consisting of alpha-L-fucopyranosyl, beta-D-galactopyranosyl and 2-amino-2-deoxy-D-glucopyranose residues joined in sequence by (1->3) and (1->4) glycosidic bonds. It is a primary amino compound and an amino trisaccharide.
(2S,3S,4R,5S,6S)-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R)-5-amino-4,6-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-6-methyloxane-3,4,5-triol