1,1'-Ethylenebisurea 1,1'-Ethylenediurea 1,2-Ethanediamine, N,N'-bis(aminocarbonyl)- 1852-14-8 Ethylenediurea Monoethylene diurea NSC47006 Urea, 1,1'-ethylenedi- Urea, N,N''-1,2-ethanediylbis-