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-diethyl-12,12,13,13,14,14-hexafluoro-3,23-dithiahexacyclo[14.7.0.02,10.04,9.011,15.017,22]tricosa-4,6,8,10,15,17,19,21-octaene into molecular formula.
user
C25H18F6S2
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