13907-57-8 NSC93372 Urea, 1,1'-(1,4-cyclohexylene)bis[3-(2-chloroethyl)-3-nitroso-, (E)- Urea, 1,1'-(1,4-cyclohexylene)bis[3-(2-chloroethyl)-3-nitroso-, (E]- Urea, N,N''-1,4-cyclohexanediylbis[N'-(2-chloroethyl)-N'-nitroso-, trans-