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)O)CO)O)O)O)O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O[C@H]4[C@@H]([C@H](C=C(O4)C(=O)O)O)O)O)O
Description: The molecule is a tetrasaccharide consisting of beta-D-Delta(4)-glucopyranuronic acid, beta-D-glucopyranosyl, alpha-L-rhamnopyranosyl and beta-D-glucopyranosyl residues, joined in sequence by (1->4), (1->4) and (1->3)-glycosidic bonds, respectively. It is a conjugate acid of a beta-D-Delta(4)-GlcpA-(1->4)-beta-D-Glcp-(1->4)-alpha-L-Rhap-(1->3)-beta-D-Glcp(1-).