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Under IUPAC nomenclature, a molecule named (2,2,2-trifluoroacetyl) 3-[(2S)-1-[1-[1-[(1R)-1-(2,4-dichlorophenyl)ethyl]-3-methylpyrazolo[3,4-b]pyrazin-6-yl]piperidin-4-yl]pyrrolidin-2-yl]propanoate is given. What is its corresponding molecular formula?
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C28H31Cl2F3N6O3
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