You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (E)-2-cyano-N-[(3E)-3-ethenylhexa-3,5-dien-2-yl]-3-(1H-imidazol-2-yl)prop-2-enamide .
user
C15H16N4O
assistant