alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->4)-beta-D-Glc-yl group
alpha-neu5ac-(2->3)-beta-d-gal-(1->4)-beta-d-glc-yl group
A β-<small>D</small>-glucosyl group derived from the trisaccharide <em>N</em>-acetyl-α-neuraminyl-(2→3)-β-<small>D</small>-galactosyl-(1→4)-β-<small>D</small>-glucose.  Implied reactive epitope within ganglioside GM3.