You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(5-benzyl-1H-1,2,4-triazol-3-yl)methyl]-3-cyanocyclopentane-1-sulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H19N5O2S
assistant