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What is the molecular formula of the molecule 19-[5-(4,6-diphenyl-1,3,5-triazin-2-yl)spiro[fluorene-9,9'-xanthene]-2-yl]-14-phenyl-9-oxa-14-azapentacyclo[11.7.0.02,10.03,8.015,20]icosa-1(13),2(10),3,5,7,11,15,17,19-nonaene ?
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C64H38N4O2
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