The molecule is a carbohydrate acid derivative anion arising from deprotonation of the carboxylic acid and sulfate groups of the repeating units of heparan sulfate N-acetyl-alpha-D-glucosaminide; major species at pH 7.3. It is a carbohydrate acid derivative anion, an organic sulfamate oxoanion and an ionic polymer. It is a conjugate base of a heparan sulfate N-acetyl-alpha-D-glucosaminide.
(2R,3S,4S,5R,6R)-3-[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(2R,3S,4R,5R,6S)-4,6-dihydroxy-5-(sulfonatoamino)-2-(sulfonatooxymethyl)oxan-3-yl]oxy-4-hydroxy-5-sulfonatooxyoxane-2-carboxylate