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system
Name the molecular formula for the molecule established as tert-butyl N-[4-[[5-[[butan-2-ylcarbamoyl-[3-(4-methylpiperazin-1-yl)propyl]amino]methyl]pyridine-2-carbonyl]amino]thiophen-3-yl]carbamate using the IUPAC nomenclature.
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C29H45N7O4S
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