You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-[4-[(E)-1-(4-amino-2-fluoro-3-methanimidoylphenyl)-2-phenylbut-1-enyl]phenyl]prop-2-enoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H23FN2O2
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