preferred_name: N-acetyl-beta-D-galactosaminyl-(1->4)-[N-acetyl-alpha-neuraminosyl-(2->3)]-beta-D-galactosyl-(1->3)-N-acetyl-beta-D-galactosaminyl-(1->4)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1')-ceramide(d20:0)(1-)