[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an aryl dialkyl phosphate where both the alkyl groups are ethyl and the aryl group is 4-nitrophenyl. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor and a mouse metabolite. It is an aryl dialkyl phosphate and an organophosphate insecticide."}, {"from": "gpt", "value": "[C][C][O][P][=Branch1][C][=O][Branch1][Ring2][O][C][C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1]"}]