[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch1][=C][=C][C][=C][Ring1][=Branch1][C][C][Branch1][Ring1][C][#N][C][#N][O]"}, {"from": "gpt", "value": "The molecule is a protein tyrosine inhibitor that is used as a negative control for the inhibition of epidermal growth factor receptor tyrosine kinase activity. (NCI)"}]