You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-amino-6-iminoxanthen-9-yl)-5-[3-(2-azidoethylamino)-3-oxopropanoyl]benzoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H20N6O5
assistant