SMILES: C[C@H]1[C@@H]([C@H]([C@H]([C@@H](O1)O)O[C@@H]2[C@@H]([C@H](C=C(O2)C(=O)[O-])O)O)O)O
Description: The molecule is a hexuronate that results from the removal of a proton from the carboxy group of 2-O-(4-deoxy-beta-L-threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose. It is a monocarboxylic acid anion and a hexuronate. It is a conjugate base of a 2-O-(4-deoxy-beta-L-threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose.