D-galactosyl-N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosyl-N-acylsphingosine
d-galactosyl-n-acetyl-d-galactosaminyl-(n-acetylneuraminyl)-d-galactosyl-d-glucosyl-n-acylsphingosine