[{"from": "human", "value": "Please give me some details about this molecule. [O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1].[O][=U+2][=O]"}, {"from": "gpt", "value": "The molecule appears as an odorless yellow-green solid. Sinks in and mixes with water. A hydrate of formula (H2SO4)2.7H2O is also known."}]