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 N-[2-[[5-[di(propan-2-yl)amino]-1,3,4-thiadiazol-2-yl]diazenyl]-5-(dipropylamino)phenyl]methanesulfonamide ?
user
C21H35N7O2S2
assistant