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What is the molecular formula of the molecule N-phenyl-N-(2-triphenylen-2-ylphenyl)spiro[1-azapentacyclo[10.7.1.02,7.08,20.014,19]icosa-2,4,6,8(20),9,11,14,16,18-nonaene-13,9'-fluorene]-3'-amine ?
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C61H38N2
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