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system
Name the molecular formula for the molecule established as 12-(4-carbazol-9-ylphenyl)-11-phenylindolo[2,3-a]carbazole;12-[3-(9-phenylcarbazol-3-yl)phenyl]-11-(3-phenylphenyl)indolo[2,3-a]carbazole;3,8,11,12-tetraphenylindolo[2,3-a]carbazole using the IUPAC nomenclature.
user
C138H90N8
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