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Can you give the molecular formula of the molecule 2-phenyl-14-[4-[3-(2-phenylquinazolin-4-yl)phenyl]phenyl]-10-oxa-15-azapentacyclo[11.8.0.03,11.04,9.016,21]henicosa-1,3(11),4,6,8,12,14,16,18,20-decaene ?
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C51H31N3O
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