You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[5-(2-chlorophenyl)-4-(4-chlorophenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-(4-fluorophenyl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H15Cl2FN4OS
assistant