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What is the molecular formula of the molecule 11-(4a,9a-dimethyl-6-phenyl-1,2,3,4-tetrahydrocarbazol-9-yl)-5,17-ditert-butyl-8,14-di(dibenzofuran-2-yl)-8,14-diaza-1-borapentacyclo[11.7.1.02,7.09,21.015,20]henicosa-2(7),3,5,9,11,13(21),15(20),16,18-nonaene ?
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C70H62BN3O2
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