You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[4-[3-ethyl-4-[2-[4-(trifluoromethyl)phenyl]benzoyl]-1H-pyrrol-2-yl]phenyl]acetic acid into molecular formula.
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C28H22F3NO3
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