You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-carbazol-9-ylphenyl)-4-(12,12-dimethylindeno[1,2-c]carbazol-5-yl)-N-phenylaniline The above is the IUPAC name of a molecule. Write its molecular formula.
user
C51H37N3
assistant