[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule appears as purple crystals. Water insoluble."}, {"from": "gpt", "value": "[C][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2]"}]