GM1a神经节苷脂类糖-β-N-乙酰–空间构型3-生物素,GM1a Ganglioside sugar-NAc-sp3-Biotin, Galβ1-3GalNAcβ1-4(Neu5Acα2-3)Galβ1-4 Glcβ-NAc-spacer3-biotin, 货号:GLY096-NAc-sp3-Bt