preferred_name: N-acetyl-alpha-neuraminosyl-(2->6)-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-[beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->6)]-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1')-ceramide(t18:0)(1-)