You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(2,3-difluorophenyl)-5-[[4-(4-propan-2-ylphenyl)phenyl]methyl]imidazo[4,5-c]pyridine into molecular formula.
user
C28H23F2N3
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