You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[4-ethoxy-2-[(4-fluorophenyl)methylamino]pyrido[3,2-d]pyrimidin-6-yl]-2-fluorobenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H19F2N5O2
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