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What is the molecular formula of the molecule identified by 3,5-di(carbazol-9-yl)-2,4,6-tris(4-carbazol-9-ylphenyl)benzonitrile;2,4,6-tris(3-carbazol-9-ylphenyl)-3,5-bis(3,6-dimethylcarbazol-9-yl)benzonitrile;2,4,6-tris(4-carbazol-9-ylphenyl)-3,5-bis(3,6-dimethylcarbazol-9-yl)benzonitrile ?
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C263H172N18
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