You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
8-chloro-3-phenyl-7,8lambda4-dithia-9-azabicyclo[4.3.0]nona-1(6),2,4,8-tetraene is the IUPAC name of a molecule. Please give its molecular formula.
user
C12H8ClNS2
assistant