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Convert the IUPAC name of a molecule 20-(4,6-diphenyl-1,3,5-triazin-2-yl)-3-naphthalen-1-yl-12-oxa-20-azapentacyclo[15.2.1.05,19.06,11.013,18]icosa-1,3,5(19),6,8,10,13,15,17-nonaene into molecular formula.
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C43H26N4O
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