You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-[[4-[[2-(2,4-dimethylphenoxy)acetyl]carbamothioylamino]phenyl]carbamothioyl]propanamide using the IUPAC nomenclature.
user
C21H24N4O3S2
assistant