You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1Z,3E)-4-[2-[9-[(3Z,5E,9Z)-8-methylideneundeca-1,3,5,9-tetraen-6-yl]-11-phenyl-9,10-dihydrobenzo[a]carbazol-3-yl]phenyl]penta-1,3-dien-1-amine .
user
C45H42N2
assistant