You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2,2-trifluoro-N-[3-[(E)-3-(4-hydroxy-3-methoxyphenyl)-3-oxoprop-1-enyl]phenyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H14F3NO4
assistant