SMILES: C[C@H]1[C@H]([C@H]([C@@H]([C@@H](O1)O[C@@H]2[C@H]([C@@H](O[C@@H]([C@H]2O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O[C@H]4[C@H]([C@H]([C@@H]([C@H](O4)CO[C@@H]5[C@H]([C@H]([C@@H]([C@H](O5)CO)O)O)O)O)O[C@@H]6[C@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O)O[C@H]7[C@@H]([C@H]([C@@H](CO7)O)O)O)O)NC(=O)C)CO)O)NC(=O)C)O)O)O
Description: The molecule is a branched amino heptasaccharide consisting of a linear chain of an alpha-D-mannose residue, a beta-D-mannose residue and two N-acetyl-beta-D-glucosamine residues linked sequentially (1->6), (1->4) and (1->4), to the alpha-D-mannose residue of which are linked (1->3) and (1->2) alpha-D-mannose and beta-D-xylose residues respectively, while the N-acetyl-beta-D-glucosamine residue at the reducing end also carries an alpha-L-fucose residue via a (1->3) linkage. It forms the heptasaccharide portion of the N-glycan phytohemaglutinin (PHA). It has a role as a carbohydrate allergen. It is an amino heptasaccharide and a glucosamine oligosaccharide.