Naphtholazophenylazoaminonaphthol compounds and copper complexes thereof

Abstract

The dyestuffs of the general formulae ##STR1## and salts thereof wherein X denotes hydrogen, alkoxy or NHR.sub.3, R denotes hydrogen, alkyl or alkoxy, R.sub.1 denotes alkyl, R.sub.2 and R.sub.3 denote hydrogen, alkyl, alkylcarbonyl, alkylsulphonyl, aryl, arylcar=bonyl, arylsulphonyl, aralkyl, aralkylcarbonyl or aminocarbonyl and m and n denote 1 or 2, and wherein the substituents mentioned can, in turn, be substituted by nonionic radicals or carboxylic or sulphonic acid groups customary in dyestuffs chemistry, are used for dyeing cellulose-containing materials and leather.

Dependencies are inferred from the claim text.