71764-07-3 D-Galactose, O-(N-acetyl-alpha-neuraminosyl)-(2-6)-O-(O-(N-acetyl-alpha-neuraminosyl)-(2-3)-beta-D-galactopyranosyl-(1-3))-2-(acetylamino)-2-deoxy- DSGG Disialosyl galactosyl globoside Neuacalpha2-3Galbeta1-3(neuacalpha2-6)galnac