You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-[3-[5-[2-[2-[3-(3,4-dihydroxyphenyl)propylamino]ethyl-[2-[2-[2-[3-(3,4-dihydroxyphenyl)propylamino]ethylamino]ethylamino]ethyl]amino]ethyl-[2-[2-(propylamino)ethyl-[2-[2-(propylamino)ethylamino]ethyl]amino]ethyl]amino]pentylamino]propyl]benzene-1,2-diol .
user
C56H101N11O6
assistant