You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-chloro-2-N-(3,5-dichloro-8lambda4-thia-7,9-diazabicyclo[4.3.0]nona-1(6),2,4,7,8-pentaen-2-yl)pyridine-2,5-diamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C11H6Cl3N5S
assistant