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 4-[4-[9-hydroxy-2-(hydroxymethyl)-9-(trifluoromethyl)fluoren-4-yl]pyrazol-1-yl]butanoic acid into molecular formula.
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C22H19F3N2O4
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