You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 4-[(E)-2-[3,5-bis[(E)-2-pyridin-4-ylethenyl]phenyl]ethenyl]pyridine;4-[2-[3,5-bis(2-pyridin-4-ylethynyl)phenyl]ethynyl]pyridine;4-[4-[3,5-bis(4-pyridin-4-ylphenyl)phenyl]phenyl]pyridine ?
user
C93H63N9
assistant