You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(4-benzo[b][1]benzothiepin-4-ylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H25BO2S
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