You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 6-(2-ethylhexyl)-12-phenyl-6-azatetracyclo[6.5.2.04,15.011,14]pentadeca-1(14),2,4(15),8,10,12-hexaene-5,7-dione by IUPAC nomenclature, provide its molecular formula.
user
C28H27NO2
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