2,6-Dichloro-4-nitroaniline is an organic compound with the formula O2NC6H2Cl2NH2. It is the most widely discussed isomer of dichloronitroaniline, mainly as a precursor to the azo dye disperse brown 1. It is prepared by treatment of 4-nitroaniline with a mixture of hydrochloric acid and hydrogen peroxide (a source of chlorine).[3][4]
References
^Hughes, David L.; Trotter, James (1971). "Crystal structure of 2,6-dichloro-4-nitroaniline". Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 2181. doi:10.1039/J19710002181.