[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a phenylenediamine in which the amino functions are at positions 1 and 4 of the benzene nucleus. It has a role as a hapten, a dye, a reagent and an allergen."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][#Branch1][=C][C][=C][Ring1][=Branch1][N][N]"}]