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system
Provide the molecular formula for the IUPAC named substance 14-phenyl-7-[6-phenyl-2-(3-phenylphenyl)pyrimidin-4-yl]-3-oxa-15-azapentacyclo[11.8.0.02,10.04,9.016,21]henicosa-1(13),2(10),4(9),5,7,11,14,16,18,20-decaene .
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C47H29N3O
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