1-Aziridinecarboxamide, N,N'-(4-methyl-1,3-phenylene)bis- 1-Aziridinecarboxamide, N,N'-(4-methyl-m-phenylene)bis- 2,4-Bis(3,3-ethyleneureido)toluene 2,4-Tolylenebis(ethyleneurea) 2131-75-1 ESK 230 N,N'-(2,4-Tolylene)bis(1-aziridinecarboxamide) N,N'-Bis(cycloethylenecarbamyl)-2,4-diaminotoluene NSC26238 OM 53264 Olin 53264