[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is the aromatic diazonium ion that is diazotised 4-aminophenylarsonic acid. It has a role as a hapten. It is functionally related to a phenylarsonate(1-)."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][Branch2][=C][C][=C][Ring1][=Branch1][N+1][#N][As][=Branch1][C][=O][Branch1][C][O][O-1]"}]