You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 9-[(4-methylphenyl)methylsulfanyl]-5-thia-1,10,11-triazatricyclo[6.4.0.02,6]dodeca-2(6),3,7,9,11-pentaene by IUPAC nomenclature, provide its molecular formula.
user
C16H13N3S2
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