[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch2][Ring1][C][C@@H1][Branch1][#Branch2][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an oxalatosuccinate(3-) in which the carboxy group at position 2 adopts an S-configuration."}]