You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-chloro-N-[(1S)-1-(4-ethyl-5-prop-2-enylsulfanyl-1,2,4-triazol-3-yl)ethyl]benzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H19ClN4O2S2
assistant