You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2,4-dibromo-6-[(E)-[(4-nitrobenzoyl)hydrazinylidene]methyl]phenyl] furan-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H11Br2N3O6
assistant