(Phenylphosphonyl)dianilide 4-16-00-01077 (Beilstein Handbook Reference) 4707-91-9 BRN 2944516 Benzenephosphodianilide Benzenephosphonanilide Bisanilinophenylphosphine oxide N,N',P-Triphenylphosphonic diamide Phenylphosphonic dianilide Phosphonic diamide, N,N',P-triphenyl-