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system
Provide the molecular formula for the IUPAC named substance 5-[5-(2,9-diphenylbenzimidazolo[1,2-a]benzimidazol-5-yl)-3-isocyano-2-phenyl-4-(3-propan-2-ylcarbazol-9-yl)phenyl]-2,9-diphenylbenzimidazolo[1,2-a]benzimidazole .
user
C78H52N8
assistant