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 alpha-D-glucosaminide 3-sulfate; 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 alpha-D-glucosaminide 3-sulfate.
(2R,3S,4S,5R,6R)-3-[(2R,3R,4R,5R,6R)-3-azaniumyl-5-hydroxy-6-(hydroxymethyl)-4-sulfonatooxyoxan-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