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 methyl 2-[[(5-ethylthiophene-3-carbonyl)amino]carbamothioylamino]-4,5-dimethylthiophene-3-carboxylate using the IUPAC nomenclature.
user
C16H19N3O3S3
assistant