[{"from": "human", "value": "Generate a molecule based on this description. The molecule is the organic sodium salt formed between sodium and malonic acid (molar ratio 2:1). It contains a malonate(2-)."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1].[Na+1].[Na+1]"}]