[{"from": "human", "value": "Describe this molecule. [Li+1].[Li+1].[O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a metal sulfate in which the counterion is lithium and the ratio of lithium to sulfate is 2:1. It has a role as an antidepressant. It contains a lithium(1+)."}]