You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(Z)-(2-chlorophenyl)methylideneamino]-3-(2-cyclohexylethyl)-1H-1,2,4-triazole-5-thione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H21ClN4S
assistant