[{"from": "human", "value": "Could you provide a description of this molecule? [C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][As][=Branch1][C][=O][Branch1][C][O][O]"}, {"from": "gpt", "value": "The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of arsonoacetic acid. It is a conjugate base of an arsonoacetic acid."}]