You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[anilino-(4-methoxy-6-piperazin-1-yl-1,3,5-triazin-2-yl)amino]cyclohexa-2,4-diene-1-sulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H26N8O3S
assistant