Substituted ortho-aminophenols, process for preparing them and t

Details Substituted ortho-aminophenols, process for preparing them and t Substituted ortho-aminophenols, process for preparing them and t

1989-10-27

1992-09-08

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

8410, 8411, 8416, 8421, 560 29, 564182, 564223, A61K 713

Patent

active

051454831

ABSTRACT:
5-Substituted ortho-aminophenols of formula: ##STR1## in which: R.sub.1 denotes a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl radical having 1 to 4 carbon atoms; and

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