You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[[5-(4-methoxyphenyl)-4-prop-2-enyl-1,2,4-triazol-3-yl]sulfanyl]propanenitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H16N4OS
assistant