You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-amino-7-[5-(piperazin-1-ylmethyl)-1H-indol-2-yl]-5-thiophen-2-ylisoindole-1,3-dione into its molecular formula.
user
C25H23N5O2S
assistant