You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-thiophen-2-yl-13-oxapentacyclo[12.8.0.03,12.04,9.017,22]docosa-1(14),3(12),4,6,8,10,15,17,19,21-decaene by IUPAC nomenclature, provide its molecular formula.
user
C25H16OS
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