->8)-alpha-Neu5Ac-(2->3)-[beta-D-Gal-(1->3)-beta-D-GalNAc-(1->4)]-beta-D-Gal-(1->4)-yl group
->8)-alpha-neu5ac-(2->3)-[beta-d-gal-(1->3)-beta-d-galnac-(1->4)]-beta-d-gal-(1->4)-yl group
An organic group forming part of, and a proposed epitope within, ganglioside G<small><sub>M1</sub></small>. The →8) linkage to Neu5Ac may represent an additional α2→8-linked sialic acid residue, while the -(1→4)-yl may represent -(1→4)-glucosyl.