You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(7-bromo-5,6-dimethyl-1,3-benzoxazol-2-yl)-6-methyl-4-(1,2,4-triazol-4-yl)phenol is the IUPAC name of a molecule. Please give its molecular formula.
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C18H15BrN4O2
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