You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 4-[(1S)-1-(5-thiophen-2-yl-1,3,4-oxadiazol-2-yl)ethyl]piperazin-4-ium-2-one ?
user
C12H15N4O2S+
assistant