You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-[1-(4-methylphenyl)-2,5-dioxopyrrolidin-3-yl]-3-nitro-N-(thiophen-2-ylmethyl)benzamide ?
user
C23H19N3O5S
assistant