1-(2-chloroethyl)-3-[4-[4-[[2-chloroethyl(nitroso)carbamoyl]amino]phenyl]phenyl]-1-nitrosourea

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

4,4-二碘联苯

4'-phenylazo-biphenyl-4-ylamine

phenyl-[4-(4-phenyldiazenylphenyl)phenyl]diazene