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Name the molecular formula for the molecule established as 4-(6-fluoro-1-oxidopyridin-1-ium-3-yl)-7-[[(5-pent-2-en-3-yl-1,3-thiazol-2-yl)amino]methyl]chromen-2-one using the IUPAC nomenclature.
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C23H20FN3O3S
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