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What is the molecular formula of the molecule 11-cyclohexyl-4,14-diphenyl-8-[4-(9,9'-spirobi[fluorene]-2-yl)phenyl]-8,14-diaza-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9,11,13(21),15,17,19-nonaene ?
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C67H49BN2
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