[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a pyridazinone."}, {"from": "gpt", "value": "[C][C][=C][Branch1][=Branch1][S][C][=C][Ring1][Branch1][/C][=N][/N][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][N][N][=C][Ring1][#Branch1][Cl]"}]