[{"from": "human", "value": "Provide a description of this molecule. [C][Branch2][Branch2][Ring2][C@@H1][C@H1][Branch2][#Branch1][=C][C@@H1][Branch2][=Branch1][P][C@H1][Branch2][=Branch1][N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][Branch1][#C][C@H1][Branch2][Branch1][C][C@@H1][Branch1][#Branch2][O][C@H1][Ring1][=Branch1][C][=Branch1][C][=O][O-1][O][C@@H1][C@H1][Branch2][Ring1][=Branch1][O][C@@H1][Branch1][P][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][N][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O][NH3+1][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O][O]"}, {"from": "gpt", "value": "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."}]