SMILES: CC(=O)N[C@@H]1[C@H]([C@H]([C@H](O[C@@H]1O[C@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)NC(=O)C)O[C@H]3[C@H](O[C@@H]([C@@H]([C@H]3O)NC(=O)C)O[C@H]4[C@H](O[C@@H]([C@@H]([C@H]4O)NC(=O)C)OCCCNC(=O)CCOCCOCCOCCOCCOCCOCCNC(=O)CCCC[C@H]5[C@@H]6[C@H](CS5)NC(=O)N6)CO)CO)CO)CO)O)O
Description: The molecule is a tetrasaccharide derivative in which N-acetyl-alpha-D-galactosaminyl-(1->4)-N-acetyl-alpha-D-galactosaminyl-(1->4)-N-acetyl-alpha-D-galactosaminyl-(1->4)-N-acetyl-alpha-D-galactosamine is linked glycosidically to biotin via a (21-oxo-3,6,9,12,15,18-hexaoxa-22-azapentacosan-1-yl)amino spacer. One of a set of synthesised biotinylated oligo-alpha-(1->4)-D-galactosamines comprising from two to six monosaccharide units, along with their N-acetylated derivatives (PMID:31913631), aimed at analysing the specificity of the antibody responses to a complex exopolysaccharide galactosaminogalactan found in Aspergillus fumigatus, the most important airborne human fungal pathogen in industrialized countries. It is a member of biotins and a tetrasaccharide derivative.