You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[(2,5-dimethoxybenzenecarbothioyl)-ethylamino]-3-methyl-2,4-dioxopentyl]-N-ethyl-2,5-dimethoxybenzenecarbothioamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H36N2O6S2
assistant