You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[4,5-bis(dimethylsilyl)-1,3-dithiol-2-ylidene]-5-dimethylsilyl-1,3-dithiol-4-yl]-dimethylsilane is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H28S4Si4
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