You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by N-[3-[(S)-[4-(2-hydroxyethyl)piperazin-1-yl]-pyridin-3-ylmethyl]-4,5-dimethylthiophen-2-yl]furan-2-carboxamide ?
user
C23H28N4O3S
assistant