[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][=C][=O]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid. About the same density as water. Very toxic by ingestion, inhalation or skin absorption. Very irritating to skin, eyes and mucous membranes."}]