N5,N9-Diphenyl-N5,N9-di-m-tolylspiro[benzo[c ]fluorene-7,9'-fluorene]-5,9-diamine

N5,N9-Diphenyl-N5,N9-di-m-tolylspiro[benzo[c ]fluorene-7,9'-fluorene]-5,9-diamine · CAS 1262281-91-3