You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-[1-(2-bromophenyl)-3-methyl-2-oxoazetidin-3-yl]benzenediazonium;2,2,2-trifluoroacetate into molecular formula.
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C18H13BrF3N3O3
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