The dye intermediate 2,6-dichloro-4-nitroaniline was prepared by direct chloridization of nitroaniline in the solution of hydrochloric acid.

• 在盐酸溶液中 ,以对硝基苯胺为原料 ,采用直接氯化法制取了染料中间体2,6-二氯 -4 -硝基苯胺。