You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(2-aminoethyl)-3-bromo-N-(5-methylfuran-2-yl)imidazo[1,2-b]pyridazin-6-amine by IUPAC nomenclature, provide its molecular formula.
user
C13H14BrN5O
assistant