You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(Z)-3-(4-methylpiperazin-1-yl)-3-oxo-1-thiophen-2-ylprop-1-en-2-yl]thiophene-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H19N3O2S2
assistant