You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-ethyl-2-(2-fluoro-6-methylphenoxy)-N-[(1Z,3E)-1-(methylamino)-5-oxopenta-1,3-dien-3-yl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H23FN2O3
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