You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(9,9-diphenylspiro[anthracene-10,9'-fluorene]-4'-yl)-N,N-diphenylnaphthalen-1-amine;5-(9,9-diphenylspiro[anthracene-10,9'-fluorene]-2'-yl)-N,N-diphenylnaphthalen-1-amine;5-(9,9-diphenylspiro[anthracene-10,9'-fluorene]-3'-yl)-N,N-diphenylnaphthalen-1-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C180H123N3
assistant