You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(4-ethyl-5-sulfanylidene-1H-1,2,4-triazol-3-yl)methyl]-2-hydroxy-2-methyl-3-phenylbutanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H22N4O2S
assistant