You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-N-[5-bromo-2-[2-(diaminomethylideneamino)ethylamino]-3-formamidophenyl]-6-N-[5-bromo-2-[2-(diaminomethylideneamino)ethylamino]phenyl]pyrimidine-4,6-dicarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H29Br2N13O3
assistant