You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[2,6-dibromo-4-[(Z)-[(5-nitro-1-benzothiophene-2-carbonyl)hydrazinylidene]methyl]phenoxy]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H13Br2N3O6S
assistant