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 5-(cyclopropanecarbonylamino)-N-[[3-[[ethyl(methyl)amino]methyl]phenyl]methyl]-3-methylthiophene-2-carboxamide .
user
C21H27N3O2S
assistant