You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
14-[3-(3-benzo[c]carbazol-7-ylphenyl)phenyl]-11-oxa-13,16-diazatetracyclo[8.7.0.02,7.012,17]heptadeca-1(10),2,4,6,8,12,14,16-octaene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C42H25N3O
assistant