You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[4-(1,3-benzodioxol-5-ylmethyl)piperazin-1-yl]-2-oxoethyl]sulfonyl-N-phenylacetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H25N3O6S
assistant