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 identified by 4-[4-[[2-(4-methylpiperazin-1-yl)pyrimidin-4-yl]oxymethyl]triazol-1-yl]benzenesulfonamide ?
user
C18H22N8O3S
assistant