The molecule is an oligosaccharide derivative consisting of two 2-acetamido-4-amino-2,4-dideoxy-alpha-D-fucosyl-(1->4)-alpha-D-galacturonosyl-(1->3)-alpha-D-galacturonosyloxy trisaccharide units linked via a dithiodiethyl divalent group. One of a panel of synthetic oligosaccharide derivatives designed to reveal a critical role of the rare aminosugar 2-acetamido-4-amino-2,4-dideoxy-D-fucose (2-acetamido-4-amino-2,4,6-trideoxy-D-galactose; D-AAT) for serotype 1 immune recognition (PMID:29632881). It is an organic disulfide and an oligosaccharide derivative.
(2S,3R,4R,5R,6S)-3-[(2R,3R,4S,5R,6R)-3-acetamido-5-amino-4-hydroxy-6-methyloxan-2-yl]oxy-6-[(2S,3R,4S,5R,6S)-2-[2-[2-[(2S,3R,4S,5R,6S)-4-[(2S,3R,4R,5R,6S)-5-[(2R,3R,4S,5R,6R)-3-acetamido-5-amino-4-hydroxy-6-methyloxan-2-yl]oxy-6-carboxy-3,4-dihydroxyoxan-2-yl]oxy-6-carboxy-3,5-dihydroxyoxan-2-yl]oxyethyldisulfanyl]ethoxy]-6-carboxy-3,5-dihydroxyoxan-4-yl]oxy-4,5-dihydroxyoxane-2-carboxylic acid