beta-D-GalNAc-(1->4)-[alpha-Neu5Ac-(2->3)]-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1')-Cer(1-)
beta-d-galnac-(1->4)-[alpha-neu5ac-(2->3)]-beta-d-gal-(1->4)-beta-d-glc-(1<->1')-cer(1-)
An <em>N</em>-acetylneuraminate that is the conjugate base of β-<small>D</small>-GalNAc-(1→4)-[α-Neu5Ac-(2→3)]-β-<small>D</small>-Gal-(1→4)-β-<small>D</small>-Glc-(1↔1')-Cer, obtained by deprotonation of the carboxy group; major species at pH 7.3.