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Under IUPAC nomenclature, a molecule named 9-[6-(4-methylpiperazin-1-yl)pyridin-3-yl]-1-[4-piperazin-1-yl-3-(trifluoromethyl)phenyl]pyrimido[5,4-c][1,5]naphthyridine-2,4-dione;9-(2-methylpyrimidin-5-yl)-1-[4-piperazin-1-yl-3-(trifluoromethyl)phenyl]pyrimido[5,4-c][1,5]naphthyridine-2,4-dione is given. What is its corresponding molecular formula?
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C57H51F6N17O4
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