You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule methyl 4-[3-[4-(4-fluorophenyl)piperazin-1-ium-1-yl]-2,5-dioxopyrrolidin-1-yl]benzoate into molecular formula.
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C22H23FN3O4+
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