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What is the molecular formula of the molecule 21-(9-phenylcarbazol-3-yl)-12-azahexacyclo[10.10.1.02,11.04,9.013,18.019,23]tricosa-1(22),2,4,6,8,10,13,15,17,19(23),20-undecaene ?
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C40H24N2
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