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 (5R)-3-[1-(2-fluorophenyl)indazol-4-yl]-5-methyl-2-oxoimidazolidine-1-carboxylic acid is given. What is its corresponding molecular formula?
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C18H15FN4O3
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