[{"from": "human", "value": "Describe this molecule. [C][C][Branch2][Ring1][N][C][=C][Branch2][Ring1][C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][S][=Branch1][C][=O][=Branch1][C][=O][C][O][C][Ring1][=C][=O][C]"}, {"from": "gpt", "value": "The molecule is a methanesulfonate ester that is methanesulfonic acid in which the hydrogen of the hydroxy group has been replaced by a 3,3-dimethyl-2-oxo-2,3-dihydro-1-benzofuran-5-yl group. It is a metabolite of the herbicide ethofumesate. It has a role as a marine xenobiotic metabolite. It is a methanesulfonate ester, a member of 1-benzofurans and a gamma-lactone."}]