10539-40-9 4-06-00-00743 (Beilstein Handbook Reference) BRN 2538837 Diphenyl N-amidinophosphoramidate N-Amidinophosphoramidic acid diphenyl ester NSC 269962 Phosphoramidic acid, N-amidino-, diphenyl ester Phosphoramidic acid, amidino-, diphenyl ester (8CI)