1,3-bis(3-methylphenyl)thiourea

2-chloro-3-(4-methylanilino)naphthalene-1,4-dione

3-methyl-4-[(4-nitrophenyl)diazenyl]aniline

N-(4-nitro-phenyl)-N'-m-tolyl-triazene

6-chloro-2-N,4-N-bis(3-methylphenyl)-1,3,5-triazine-2,4-diamine