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system
Name the molecular formula for the molecule established as methyl-[1-[4-(3-methyl-5-oxo-7H-imidazo[1,5-c]imidazol-6-yl)piperazin-1-yl]-1-oxobutan-2-yl]carbamic acid using the IUPAC nomenclature.
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C16H24N6O4
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