[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N]"}, {"from": "gpt", "value": "The molecule is a colorless, crystalline, solid aromatic amine that turns purple when exposed to air and emits toxic fumes when heated. p-Biphenylamine is used only in laboratory research to induce tumorigenesis. Exposure to p-biphenylamine causes headaches, lethargy, cyanosis, urinary burning and hematuria. p-Biphenylamine is a mutagen and carcinogen in humans and is associated with an increased risk of developing bladder cancer. (NCI05)"}]