The molecule is a tetrasaccharide derivative consisting of a D-glucosyl residue beta-linked to a 3-aminopropyloxy group and which carries at O-3 a beta-D-mannosyl-(1->3)-beta-D-mannosyl-(1->3)-alpha-L-rhamnosyl linear trisaccharide unit. It contains a beta-D-Manp-(1->3)-beta-D-Manp-(1->3)-alpha-L-Rhap-(1->3)-beta-D-Glcp-yl group.
(2S,3S,4S,5S,6R)-2-[(2S,3S,4S,5R,6R)-2-[(2S,3R,4R,5S,6S)-2-[(2R,3R,4S,5R,6R)-2-(3-aminopropoxy)-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,5-dihydroxy-6-methyloxan-4-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol