[{"from": "human", "value": "What can you tell me about this molecule? [O-1][Mn][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a divalent inorganic anion obtained by removal of both protons from manganic acid. It is a manganese oxoanion and a divalent inorganic anion. It is a conjugate base of a hydrogen manganate."}]