[{"from": "human", "value": "Provide a description of this molecule. [C][As][=Branch1][C][=O][Branch1][C][C][O]"}, {"from": "gpt", "value": "The molecule is the organoarsenic compound that is arsenic acid substituted on the central arsenic atom with two methyl groups. It has a role as a xenobiotic metabolite. It is functionally related to an arsinic acid. It is a conjugate acid of a dimethylarsinate."}]