[{"from": "human", "value": "Provide a description of this molecule. [C][Branch2][Ring1][Ring1][C@@H1][Branch1][#C][C@H1][Branch1][Ring1][C][=O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a carbohydrate sulfate that is the 2-O-sulphate derivative of 5-dehydro-4-deoxy-D-glucuronic acid. It is a carbohydrate sulfate, an aldehyde and a monocarboxylic acid. It is functionally related to a 5-dehydro-4-deoxy-D-glucuronic acid. It is a conjugate acid of a 5-dehydro-4-deoxy-2-O-sulfo-D-glucuronic acid(2-)."}]