You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[4-(4-methoxyphenyl)piperazin-1-yl]-2-oxoethyl] 4,5-dihydrobenzo[g][1]benzothiole-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H26N2O4S
assistant