1-(2-chloroethyl)-3-[4-[[4-(2-chloroethylcarbamoylamino)phenyl]disulfanyl]phenyl]urea

2-<3-(2-chloroethyl)ureido>benzoic acid

1-(3-bicyclo[2.2.1]heptanyl)-3-(2-chloroethyl)urea

1-(2-chloroethyl)-3-(2,2,2-trifluoroethyl)urea

1-(2-chloroethyl)-3-(2-chloroethylcarbamoylamino)urea