1:1 Copper complexes of further unsubstituted or substituted 6- (2'-chloro- 4'-substituted amino-1,3,5- triazin-6'-ylamino)-1-hydroxy-2- (2'-hydroxy- 5'-sulfophenylazo)-3- sulfonaphthalenes

摘要

Compounds of the formula ##STR1## and salts thereof, wherein R. sub.1 is hydrogen, chloro, bromo, carboxy or sulfo,PPR. sub.2 is hydrogen or C.sub.1-4 alkyl,PPR.sub.3 is hydrogen, C.sub. 1-4 alkyl or C.sub.1-4 hydroxyalkyl, andP PR.sub.4 is C. sub.1-6 alkyl monosubstituted by carboxy or sulfo; C. sub.2-6 alkyl monosubstituted by hydroxy or --OR.sub.5 ; C.sub.2-6 dihydroxyalkyl the hydroxy groups of which are on different carbon atoms; phenyl or phenyl monosubstituted or disubstituted by C.sub.1-4 alkyl, PP wherein R.sub.5 is C.sub.2-4 hydroxyalkyl, with the proviso that when each of R.sub.1, R.sub.2 and R.sub.3 is hydrogen, R.sub. 4 is other than 2- hydroxyethyl, and mixtures of such complexes and salts, useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fiber materials containing or consisting of natural or synthetic polyamides or of natural or regenerated cellulose, preferably textile material containing or consisting of cotton.