You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(25,25-dimethyl-20-hexacyclo[12.11.0.02,7.08,13.015,24.018,23]pentacosa-1(14),2,4,6,8,10,12,15(24),16,18(23),19,21-dodecaenyl)-4-(4-phenylphenyl)quinazoline by IUPAC nomenclature, provide its molecular formula.
user
C47H32N2
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