385398-89-0 , 2-Acetamido-6-O-(a-2-N-acetylneuraminyl)-2-deoxy-a-D-galactopyranosyl N-acetylserine ; STN Epitope N-acetate; 6-O-a-Sialyl-2-acetamido-2-deoxy-a-D-galactopyranosyl-1-O-L-serine, N acetate C24H39N3O17 / 641.58 MFCD01320462385398-89-0 , 2-Acetamido-6-O-(a-2-N-acetylneuraminyl)-2-deoxy-a-D-galactopyranosyl N-acetylserine ; STN Epitope N-acetate; 6-O-a-Sialyl-2-acetamido-2-deoxy-a-D-galactopyranosyl-1-O-L-serine, N acetate