You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tetramethyl 6'-[2-(1,3-dioxoisoindol-2-yl)acetyl]-5',5',7',9'-tetramethylspiro[1,3-dithiole-2,1'-thiopyrano[2,3-c]quinoline]-2',3',4,5-tetracarboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H32N2O11S3
assistant