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system
Name the molecular formula for the molecule established as N-[[2-(4-fluorophenyl)-3-(2-methyl-1lambda3-ioda-3-azacyclohexa-2,4,6-trien-4-yl)-6,7-dihydro-5H-pyrrolo[1,2-a]imidazol-5-yl]methyl]pyridin-2-amine using the IUPAC nomenclature.
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C23H21FIN5
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