The molecule is a glycosylrhamnose that is 4-deoxy-beta-L-threo-hex-4-enopyranuronose joined by a (1->2)-glycosidic link to alpha-L-rhamnopyranose. It is a hexuronic acid and a glycosylrhamnose. It is a conjugate acid of a 2-O-(4-deoxy-beta-L-threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose(1-).
(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-carboxylic acid