You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-chloro-2-[4-[difluoro-(3,4,5-trifluorophenoxy)methyl]-3,5-difluorophenyl]-1,3-difluorobenzene is the IUPAC name of a molecule. Please give its molecular formula.
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C19H6ClF9O
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