You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2,5-dioxopyrrolidin-1-yl) 2-[[2-[4,5-bis(methylsulfanyl)-1,3-dithiol-2-ylidene]-5-methylsulfanyl-1,3-dithiol-4-yl]sulfanyl]acetate into its molecular formula.
user
C15H15NO4S8
assistant