You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1,2,3,11,12,12-hexachloro-5-oxahexacyclo[5.5.1.02,6.03,11.04,9.010,13]tridecane into molecular formula.
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C12H8Cl6O
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