[{"from": "human", "value": "Describe this molecule. [C][C][Branch2][Ring1][=Branch2][C][C][Branch1][=N][C][C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a member of the class of benzenes that is cyclohexane in which a hydrogen at positions 1, 3 and 5 is replaced by a phenyl group. It is present as an impurity in polystyrene food containers."}]