You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[5-[(Z)-[1-(4-bromophenyl)-2-oxo-5-phenylpyrrol-3-ylidene]methyl]furan-2-yl]benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H22BrNO4
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