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Name the molecular formula for the molecule established as N-[2-methoxy-5-[(4R,5R)-5-(1-phenylpyrrol-3-yl)-4-pyridin-2-yl-2-sulfanylideneimidazolidin-1-yl]phenyl]methanesulfonamide using the IUPAC nomenclature.
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C26H25N5O3S2
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