You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[1-(1H-benzimidazol-2-yl)-3-methylsulfanylpropyl]-3-nitro-4-piperidin-1-ylbenzamide by IUPAC nomenclature, provide its molecular formula.
user
C23H27N5O3S
assistant