You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name N-[3-[(4-fluorophenyl)methyl]-8,9-dihydroxy-1H-pyrrolo[3,4-g]quinolin-5-yl]-N-methylsulfinylmethanesulfonamide into its molecular formula.
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C20H18FN3O5S2
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