The molecule is a monocarboxylic acid anion that is the conjugate base of 3-O-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-D-galactosamine; major species at pH 7.3. It is a carbohydrate acid derivative anion and a monocarboxylic acid anion. It is a conjugate base of a N-acetyl-3-O-(4-deoxy-alpha-L-threo-hex-4-enopyranosyluronic acid)-D-galactosamine.
(2R,3R,4S)-2-[(3R,4R,5R,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4-dihydroxy-3,4-dihydro-2H-pyran-6-carboxylate