1,1'-Diphenylmethylenebis(3-(2-chloroethyl)-3-nitrosourea) 1,3-Bis(2-chloroethyl)-1-nitrosourea-diphenylmethane 68060-50-4 Urea, 1,1'-diphenylmethylenebis(3-(2-chloroethyl)-3-nitroso-