alpha-L-Fuc-(1->3)-[beta-D-Gal-(1->4)]-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->3)-beta-D-GalNAc-(1->4)-[alpha-NeuAc-(2->3)]-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer
alpha-l-fuc-(1->3)-[beta-d-gal-(1->4)]-beta-d-glcnac-(1->3)-beta-d-gal-(1->3)-beta-d-galnac-(1->4)-[alpha-neuac-(2->3)]-beta-d-gal-(1->4)-beta-d-glc-(1<->1')-cer
A sialoheptaosylceramide consisting of the branched octasaccharide α-<small>L</small>-fucosyl-(1→3)-[β-<small>D</small>-galactosyl-(1→4)]-<em>N</em>-acetyl-β-<small>D</small>-glucosaminyl-(1→3)-β-<small>D</small>-galactosyl-(1→3)-<em>N</em>-acetyl-β-<small>D</small>-galactosaminyl-(1→4)-[<em>N</em>-acetyl-α-neuraminyl-(2→3)]-β-<small>D</small>-galactosyl-(1→4)-β-<small>D</small>-glucose attached to the primary hydroxy function of a ceramide with an undefined sphingoid base. It represents a hybrid structure of type 2 Le<small><sup>x</small></sup> epitope and G<small><sub>M1</sub></small> ganglioside core structure, designated as Le<small><sup>x</small></sup>-G<small><sub>M1</sub></small>.