You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-methoxyphenyl)-6,7-dihydro-1H-[1,4]dioxino[2,3-f]benzimidazol-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H15N3O3
assistant