You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5Z)-5-[1-[4-[2-[2-(3,4-dimethoxyphenyl)-5,7-dimethoxy-4-oxochromen-3-yl]oxyethoxy]-2-methylphenyl]ethylidene]-1,3-thiazolidine-2,4-dione;ethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C35H37NO10S
assistant