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system
Name the molecular formula for the molecule established as 10,20-diphenyl-12,18-dioxa-1-phosphaheptacyclo[15.11.1.02,11.04,9.013,29.019,28.021,26]nonacosa-2,4,6,8,10,13(29),14,16,19,21,23,25,27-tridecaene using the IUPAC nomenclature.
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C38H23O2P
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