You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1,1-difluoro-4-methyl-1-methylsulfanylpentane;(1-methylcyclopentyl) 2,2-dimethylpropanoate by IUPAC nomenclature, provide its molecular formula.
user
C18H34F2O2S
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