[alpha-N-acetylneuraminyl-(2->8)]n-alpha-N-acetylneuraminyl-(2->8)-alpha-N-acetylneuraminyl-(2->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide
[alpha-n-acetylneuraminyl-(2->8)]n-alpha-n-acetylneuraminyl-(2->8)-alpha-n-acetylneuraminyl-(2->3)-beta-d-galactosyl-(1->4)-beta-d-glucosyl-(1<->1)-ceramide