You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-bromo-2-N-(2,2-diethoxyethyl)-7-methoxy-4-N-[(1R)-1-[3-(trifluoromethyl)phenyl]ethyl]quinazoline-2,4-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H28BrF3N4O3
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