a ganglioside Ac-O-7-GD1a => a ganglioside Ac-O-8-GD1a
a ganglioside ac-o-7-gd1a => a ganglioside ac-o-8-gd1a
a ganglioside Ac-O-7-GD1a => a ganglioside Ac-O-8-GD1a
a ganglioside ac-o-7-gd1a => a ganglioside ac-o-8-gd1a