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For the molecule named (2S)-N-[(2S)-1-[(2S)-2-[2-[4-(3,4-dichloro-2-fluoroanilino)-7-methoxyquinazolin-6-yl]acetyl]pyrrolidin-1-yl]-3,3-dimethyl-1-oxobutan-2-yl]-2-(methylamino)propanamide by IUPAC nomenclature, provide its molecular formula.
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C31H37Cl2FN6O4
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