You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-thia-1,11-diazapentacyclo[10.8.0.02,9.04,8.014,19]icosa-2(9),4(8),12,14,16,18-hexaene-10,20-dione by IUPAC nomenclature, provide its molecular formula.
user
C17H12N2O2S
assistant