2 - nitro p - phenylenediamine sulfurous in position 5, their preparation process, with dye compositions containing them and their use in dyeing keratinous fibers.

摘要

The invention relates to novel nitrobenzene compounds of the nitro - para-phenylenediamines sulfurous in position 5. These compounds are particularly intended for dyeing keratinous fibres and in particular human hair. & br / the invention also relates to a process for their preparation, the dye compositions containing these compounds, as well as the dyeing process employing these compositions.