You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 3-[1-[3-[4-(4-fluorophenyl)piperazin-1-yl]-3-oxopropyl]piperidin-3-yl]propanoic acid is given. What is its corresponding molecular formula?
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C21H30FN3O3
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