You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[3-[4-(2,4-dimethoxyphenyl)piperazin-1-yl]propylamino]-1,4-dihydroxynaphthalen-2-yl]-imino-oxidoazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31N5O5
assistant