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 acetaldehyde;ethane;[4-[4-[(E)-3-[4-(3-methylbuta-1,3-dien-2-yloxy)phenoxy]prop-1-enyl]-3-(2-methylprop-2-enoyloxy)phenyl]phenyl] 2-methylprop-2-enoate .
user
C40H48O7
assistant