You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-fluoro-N-[2,2,2-trichloro-1-[(2,4-dichlorophenyl)carbamothioylamino]ethyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C11H9Cl5FN3OS
assistant