You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[(3-ethoxy-4-methoxyphenyl)methyl]-4-(2-nitrophenyl)sulfonylpiperazin-1-ium;2-hydroxy-2-oxoacetate into its molecular formula.
user
C22H27N3O10S
assistant