The molecule is a sialopentaosylceramide consisting of a branched hexasaccharide made up from one lactamized sialyl residue, two galactose residues, one L-fucose residue, one N-acetyl-6-sulfoglucosamine residue and one glucose residue, which at the reducing end is attached to a d18:1/18:0 ceramide moiety via a beta-linkage; commonly known as lactamized sialyl 6-sulfo Lewis X ganglioside. It is a sialopentaosylceramide and an oligosaccharide sulfate. It contains a delta-lactam ring.
[(2R,3S,4R,5R,6S)-5-acetamido-6-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(E,2S,3R)-3-hydroxy-2-(octadecanoylamino)octadec-4-enoxy]oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3-[(2S,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-[[(3R,4R,8S)-8-hydroxy-6-oxo-3-[(1R,2R)-1,2,3-trihydroxypropyl]-2-oxa-5-azabicyclo[2.2.2]octan-1-yl]oxy]oxan-2-yl]oxy-4-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]methyl hydrogen sulfate