[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is catechol substituted at position 3 with a pentadecyl group. It has a role as an allergen."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][O][O]"}]