You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 1-[(5S)-3-chloro-2,9-difluoro-5,6-dihydrobenzo[b][1]benzothiepin-5-yl]-4-[2-(4-fluorophenyl)sulfanylethyl]piperazine ?
user
C26H24ClF3N2S2
assistant