[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1].[Na+1].[Na+1]"}, {"from": "gpt", "value": "The molecule is the organic sodium salt formed between sodium and malonic acid (molar ratio 2:1). It contains a malonate(2-)."}]