You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 9-(3-fluorophenyl)-11-(4-methoxyphenyl)-14-methylsulfanyl-8-oxa-12,13,15,17-tetrazatetracyclo[8.7.0.02,7.012,16]heptadeca-1(10),2,4,6,13,15-hexaene by IUPAC nomenclature, provide its molecular formula.
user
C26H21FN4O2S
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