You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(9-benzylcarbazol-2-yl)-N,N-dimethylmethanamine;1-(9-benzylcarbazol-3-yl)-N,N-dimethylmethanamine;ethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C52H68N4
assistant