[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][Branch2][Ring2][Branch1][O][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C@@H1][C@@H1][Branch2][Ring1][C][C@H1][Branch1][=C][C][Branch1][#Branch2][O][C@@H1][Ring1][=Branch1][C][=Branch1][C][=O][O-1][O][O][O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is dianion of 4-(4-deoxy-beta-D-gluc-4-enosyluronic acid)-D-galacturonic acid arising from deprotonation of both carboxy groups. It is a carbohydrate acid anion and a dicarboxylic acid dianion. It is a conjugate base of a 4-(4-deoxy-beta-D-gluc-4-enosyluronic acid)-D-galacturonic acid."}]