[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][Branch1][Ring1][N][=O][O-1].[NH4+1]"}, {"from": "gpt", "value": "The molecule appears as light yellow or cream-colored crystals or a brown crystalline solid. As a reagent in the separation of copper and iron."}]