You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 2-[[2-(5-bromo-1,3-dioxoisoindol-2-yl)acetyl]amino]-5-carbamoyl-4-methylthiophene-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H16BrN3O6S
assistant