1-(N-alkyl-n-benzyl or substituted benzyl-N-methyl(ammonium)alkyl)-3-cyano-4-alkyl-5-(alkyl-halo-phenyl)azo -6-hydroxypyridone-2 compounds

Abstract

Compounds of the formula ##STR1## wherein R is chlorine or bromine, R.sub.1 is straight or branched chain unsubstituted C.sub.1-4 alkyl, R.sub.2 is --CH.sub.3, C.sub.2 H.sub.5, n--C.sub.3 H.sub.7 or n--C.sub.4 H.sub.9, R.sub.3 and R.sub.4, independently, are hydrogen, chlorine, bromine or methyl, R.sub.5 is methyl or ethyl, n is 2 or 3, and A.sup..crclbar. is an anion, their production and use for dyeing and printing cationic dyeable substrates, e.g., polymers and copolymers of acrylonitrile and asymmetric dicyanoethylene and synthetic polyamides and polyesters modified by the introduction of acidic groups, and for dyeing plastics in the mass, paper and leather.

Dependencies are inferred from the claim text.