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system
Name the molecular formula for the molecule established as tert-butyl 4-[4-[(7-chloro-4-oxo-6,8-dihydro-1H-pyrido[3,4-c]pyridazin-5-ylidene)amino]-2-methylphenyl]piperazine-1-carboxylate using the IUPAC nomenclature.
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C23H29ClN6O3
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