You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[2-chloro-6-fluoro-4-(trifluoromethyl)phenoxy]-4-(difluoromethyl)-2-methyl-1,4-benzoxazin-3-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H10ClF6NO3
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