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.
(2S,3R,4S)-3,4-dihydroxy-2-[(2R,3R,4R,5R,6S)-2,4,5-trihydroxy-6-methyloxan-3-yl]oxy-3,4-dihydro-2H-pyran-6-carboxylate