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What is the molecular formula of the compound with this IUPAC name 1-(13-acetyl-12,12,15,15-tetraphenyl-11-oxa-10,16-diaza-12lambda5-phosphatetracyclo[8.6.0.02,7.012,16]hexadeca-2,4,6,13-tetraen-14-yl)ethanone ?
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C40H35N2O3P
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