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,3Z,5E,7E,9E)-9-phenyl-11-[4'-[(Z)-prop-1-enyl]-9,9'-spirobi[fluorene]-2-yl]undeca-1,3,5,7,9-pentaen-1-amine .
user
C45H37N
assistant