[{"from": "human", "value": "Please give me some details about this molecule. [C][=Branch1][C][=O][Branch1][C][O-1][O-1].[C][=Branch1][C][=O][Branch1][C][O-1][O-1].[O][O].[O][O].[O][O].[Na+1].[Na+1].[Na+1].[Na+1]"}, {"from": "gpt", "value": "The molecule appears as a colorless, crystalline solid. Denser than water. May combust in contact with organic materials. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion. Used to make other chemicals."}]