1-O-[O-(N-acetyl-alpha-neuraminosyl)-(2,3)-O-[O-beta-D-galactopyranosyl-(1,3)-2-acetamido-2-deoxy-beta-D-galactopyranosyl-(1,4)]-O-beta-D-galactopyranosyl-(1,4)-beta-D-glucopyranosyl]ceramide
1-O-[O-(N-acetil-alfa-neuraminosil)-(2,3)-O-[O-beta-D-galattopiranosil-(1,3)-2-acetammido-2-desossi-beta-D-galattopiranosil-(1,4)]-O-beta-D-galattopiranosil-(1,4)-beta-D-glucopiranosil]cerammide