You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-(5-ethyl-4-methyl-1,3-thiazol-2-yl)-3-[5-(2-methoxyethyl)-4-methylthiophen-2-yl]sulfonylurea .
user
C15H21N3O4S3
assistant