You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 6-[[6-[4-(2,3-dihydro-1H-inden-5-yl)-3-oxobutyl]-5-methyl-4-oxo-8-propan-2-yl-2,3-dihydro-1H-naphthalen-2-yl]methyl]-5-ethylnonane-2,4-dione into its molecular formula.
user
C39H52O4
assistant