You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule [4-(pyridin-3-ylmethyl)piperazin-1-yl]-[4-(1H-1,2,4-triazol-5-ylsulfanylmethyl)phenyl]methanone ?
user
C20H22N6OS
assistant