115082-64-9 De-N-acetyl-GM3 De-N-acetylneuraminyllactosylceramide GM3-Neunh2LacCer Heneicosanamide, N-(2-hydroxy-1-(((O-alpha-neuraminosyl-(2-3)-O-beta-D-galactopyranosyl-(1-4)-beta-D-glucopyranosyl)oxy)methyl)-3-heptadecenyl)-, (R-(R*,S*-(E)))-