You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[dibenzofuran-2-yl(phenyl)methyl]-2-methyl-3-[(4-nitrophenyl)methyl]imidazol-3-ium;bromide into molecular formula.
user
C30H24BrN3O3
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