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system
Name the molecular formula for the molecule established as ethane;N-[4-(9-phenylcarbazol-2-yl)phenyl]-N-(4-phenylphenyl)-1-azapentacyclo[10.6.1.02,7.08,19.013,18]nonadeca-2(7),3,5,8,10,12(19),13,15,17-nonaen-3-amine using the IUPAC nomenclature.
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C56H41N3
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