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What is the molecular formula of the molecule identified by 5-[[(1R)-1-(4-fluorophenyl)-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazin-2-ium-2-yl]methyl]-N-propan-2-ylfuran-2-carboxamide ?
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C22H25FN3O2+
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