beta-GalNAc-(1->4)-[alpha-Neu5Ac-(2->8)-alpha-Neu5Ac-(2->3)]-beta-Gal-(1->4)-R group
beta-galnac-(1->4)-[alpha-neu5ac-(2->8)-alpha-neu5ac-(2->3)]-beta-gal-(1->4)-r group
An organic group forming part of, and a proposed epitope within, ganglioside G<small><sub>D2</sub></small>. The -(1→4)-R in the name may represent -(1→4)-glucosyl.