You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[9-(2-cyclohexa-1,3-dien-1-yl-4-phenylpyrimidin-5-yl)carbazol-1-yl]-5-phenylpyrido[3,2-b]indole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C45H31N5
assistant