The molecule is an amino trisaccharide consisting of an N-glycoloylneuraminosyl residue linked alpha(2->3) to a lactose moiety. It has a role as a mammalian metabolite.
(2S,4S,5R,6R)-2-[(2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-4-yl]oxy-4-hydroxy-5-[(2-hydroxyacetyl)amino]-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid