You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(dimethylamino)-N-[7-[(4-fluorophenyl)methyl]-9-hydroxy-8-oxo-6H-pyrrolo[3,4-g]quinolin-5-yl]butane-1-sulfonamide by IUPAC nomenclature, provide its molecular formula.
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C24H27FN4O4S
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