You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [1-[(3-cyanothiophen-2-yl)amino]-1-oxopropan-2-yl] 2-(1-oxidopyridin-1-ium-2-yl)sulfanylacetate .
user
C15H13N3O4S2
assistant