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 ethyl-[[3-methoxy-4-(thiophen-2-ylmethoxy)phenyl]methyl]-[2-(methylcarbamoylamino)-2-oxoethyl]azanium using the IUPAC nomenclature.
user
C19H26N3O4S+
assistant