You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-(dimethylamino)propyl]-N-(6-ethoxy-1,3-benzothiazol-2-yl)-5-nitrothiophene-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H22N4O4S2
assistant