3,3'-Dichlorobenzidine

3,3'-Dichlorobenzidine is an organic compound with the formula (C₆H₃Cl(NH₂))₂. The pure compound is pale yellow, but commercial samples are often colored. It is barely soluble in water and is often supplied as a wet paste. It is widely used in the production of diarylide dyes and diarylide yellow pigments used in the production of printing inks.