You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-N-butyl-1-N,6-N-bis[2-[2-[2-(dimethylamino)ethyl-methylamino]ethyl-methylamino]ethyl]-4-oxooctane-1,2,6-tricarboxamide;hexyl 3-(2-aminoethyl)-5-[[8-[2-[2-aminoethyl-(2-hexoxy-2-oxoethyl)amino]ethylamino]-6-(butylcarbamoyl)-2-methyl-4,8-dioxooctanoyl]amino]pentanoate;hexyl 2-[2-[2-[[3-(butylcarbamoyl)-8-[2-[2-[(2-hexoxy-2-oxoethyl)amino]ethylamino]ethylamino]-7-methyl-5,8-dioxooctanoyl]amino]ethylamino]ethylamino]acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C112H220N22O20
assistant