You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-benzoyl-5-[(5-fluoro-2-oxo-1H-indol-3-ylidene)methyl]-3-methyl-1H-pyrrole-2-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H15FN2O4
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