0-26-00-00199 (Beilstein Handbook Reference) 1,2,4-Triazolidine-3,5-dione, 4-ethyl-1-phenyl- 34873-99-9 BRN 0201895 Bicarbamimide, N-ethyl-2-phenyl- N-Ethyl-2-phenylbicarbamimide UR 100