SMILES: C[C@H]1[C@@H]([C@H]([C@H]([C@@H](O1)O[C@H]2[C@H](O[C@H]([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)C)O)O[C@@H]5[C@@H]([C@H]([C@H]([C@H](O5)CO)O)O)O[C@H]6[C@@H]([C@H]([C@H]([C@H](O6)CO)O)O)O)OC(=O)C)O)O)NC(=O)C)O)CO)O[C@@H]7[C@@H]([C@H]([C@@H]([C@H](O7)CO)O)O)OC(=O)C)O)O
Description: The molecule is a polysaccharide derivative with a repeating unit consisting of alpha-D-galactosyl, 2-O-acetyl-beta-L-rhamnosyl, beta-D-glucosyl and N-acetyl-beta-D-galactosaminyl residues linked sequentially (1->3), (1->4) and (1->3), to the galactosyl and N-acetyl-beta-D-galactosaminyl residues of which are attached respectively a beta-D-galactosyl residue and an N-acetyl-alpha-D-glucosaminyl-(1->2)-alpha-L-rhamnosyl disaccharide unit via (1->2) and (1->4) linkages respectively, with all repeating units being linked (1->6). The repeating unit corresponds to that of the capsular polysaccharide of Streptococcus pneumoniae serotype 7F (ST7F).